Recorded close approaches, 2026-09-27 to 2026-10-27.
Only these months are charted. Earlier parts of the archive were assembled differently — the orbits of today’s catalogue propagated backwards — so a longer chart would show the change in how the data was gathered rather than a change in traffic.
Because the flag has nothing to do with how close it came on the day. NASA marks an object a Potentially Hazardous Asteroid only if both of these are true of its orbit and its size:
The two terms:
AU — astronomical unit, the average Earth–Sun distance, 149,597,871 km. 0.05 AU is about 7.5 million km.
MOID — minimum orbit intersection distance, the closest the two orbits ever come, whatever the timing.
See the glossary for NEO, PHA and H.
So a large rock passing at 39 million km today can be flagged, because on some future orbit it could come far nearer — while a pebble skimming past at 4 million km is not, because it would never reach the ground.
Three objects that all passed Earth on 30 August 2026 make the point better than any definition:
| Object | Size | Orbit’s closest to Earth’s | Missed by, that day | Flagged |
|---|---|---|---|---|
| 2013 JR28 | 122–272 m | 5.3 M km (0.035 AU) | 39.2 M km | Yes — both tests pass |
| 2012 LE11 | 629–1,406 m | 23.3 M km (0.156 AU) | 26.1 M km | No — orbit never gets near enough |
| 2007 EK | 3.7–8.2 m | 198,000 km (0.0013 AU) | 4.2 M km | No — far too small |
The middle one is five times larger than the flagged one and passed closer on the day, but its path can never come within 23 million km of ours. The last one’s orbit crosses inside the Moon’s distance — nearer than any other object here — and it is still not hazardous, because at a few metres across it would burn up long before it landed.
“Potentially hazardous” is a watchlist criterion, not a prediction. None of these is on a collision course; the label means an object is worth keeping precise track of over the coming centuries.
| Name | Diameter (m) | Hazardous | Velocity (km/h) | Miss distance |
|---|---|---|---|---|
| (2010 AL30) | 9.7 – 21.6
≈ a city bus
|
No | 31,490
26 times the speed of sound round the Earth in 76 minutes |
56,901,417 km 148 LD |
| (2011 OB57) | 16.8 – 37.5
≈ the Chelyabinsk object
|
No | 65,326
53 times the speed of sound round the Earth in 37 minutes |
56,389,129 km 147 LD |
| (2017 UP6) | 16.0 – 35.8
≈ the Chelyabinsk object
|
No | 71,618
58 times the speed of sound round the Earth in 34 minutes |
36,538,923 km 95.1 LD |
| (2018 VX1) | 8.4 – 18.8
≈ a city bus
|
No | 31,449
25 times the speed of sound round the Earth in 76 minutes |
13,818,178 km 35.9 LD routine
about 57 times a year |
| (2019 UQ6) | 19.1 – 42.7
≈ the Chelyabinsk object
|
No | 71,377
58 times the speed of sound round the Earth in 34 minutes |
43,622,914 km 113 LD |
The tag beside a distance says how often an approach at least that close, by an object of that size, appears in 127 years of this archive — a frequency rather than a percentile, because almost every close approach would score in the top few per cent and the scale would say nothing. Approaches beyond 50 lunar distances get no tag, since there is nothing useful to say about them. The counts are a floor: the archive holds the objects known today, and most of the undiscovered ones are small. The ≈ line beside a diameter compares size only. What an impact would do depends on speed, angle, composition and where it arrives, and none of that follows from width — the Chelyabinsk comparison in particular names a body remembered for its airburst, not for how wide it was.
| Name | Diameter (m) | Hazardous | Velocity (km/h) | Miss distance |
|---|---|---|---|---|
| 518810 (2010 CF19) | 113.4 – 253.5
≈ the Great Pyramid
|
Yes | 20,346
16 times the speed of sound round the Earth in 2.0 hours |
22,895,177 km 59.6 LD |
| (2003 RL10) | 322.5 – 721.2
≈ the Burj Khalifa
|
No | 52,334
42 times the speed of sound round the Earth in 46 minutes |
33,830,447 km 88.0 LD |
| (2014 JS57) | 89.2 – 199.5
≈ a football pitch
|
No | 40,395
33 times the speed of sound round the Earth in 60 minutes |
65,569,041 km 171 LD |
| (2016 NL56) | 174.8 – 390.9
≈ the Great Pyramid
|
Yes | 50,595
41 times the speed of sound round the Earth in 48 minutes |
47,711,802 km 124 LD |
| (2018 GS1) | 80.6 – 180.3
≈ a football pitch
|
No | 33,550
27 times the speed of sound round the Earth in 72 minutes |
4,240,878 km 11.0 LD routine
about 24 times a year |
| (2019 SE9) | 24.7 – 55.2
≈ an airliner's wingspan
|
No | 52,896
43 times the speed of sound round the Earth in 45 minutes |
58,487,173 km 152 LD |
The tag beside a distance says how often an approach at least that close, by an object of that size, appears in 127 years of this archive — a frequency rather than a percentile, because almost every close approach would score in the top few per cent and the scale would say nothing. Approaches beyond 50 lunar distances get no tag, since there is nothing useful to say about them. The counts are a floor: the archive holds the objects known today, and most of the undiscovered ones are small. The ≈ line beside a diameter compares size only. What an impact would do depends on speed, angle, composition and where it arrives, and none of that follows from width — the Chelyabinsk comparison in particular names a body remembered for its airburst, not for how wide it was.
| Name | Diameter (m) | Hazardous | Velocity (km/h) | Miss distance |
|---|---|---|---|---|
| (2015 HO116) | 21.1 – 47.2
≈ an airliner's wingspan
|
No | 60,685
49 times the speed of sound round the Earth in 40 minutes |
66,871,176 km 174 LD |
| (2016 XB2) | 130.8 – 292.4
≈ the Great Pyramid
|
No | 47,311
38 times the speed of sound round the Earth in 51 minutes |
26,226,892 km 68.2 LD |
| (2017 SF14) | 34.1 – 76.2
≈ an airliner's wingspan
|
No | 57,866
47 times the speed of sound round the Earth in 42 minutes |
63,615,116 km 165 LD |
| (2017 UL44) | 46.2 – 103.3
≈ an airliner's wingspan
|
No | 50,906
41 times the speed of sound round the Earth in 47 minutes |
34,840,714 km 90.6 LD |
| (2019 ER2) | 17.6 – 39.3
≈ the Chelyabinsk object
|
No | 29,130
24 times the speed of sound round the Earth in 83 minutes |
72,210,297 km 188 LD |
| (2020 CB) | 7.7 – 17.1
≈ a city bus
|
No | 35,759
29 times the speed of sound round the Earth in 67 minutes |
42,675,136 km 111 LD |
The tag beside a distance says how often an approach at least that close, by an object of that size, appears in 127 years of this archive — a frequency rather than a percentile, because almost every close approach would score in the top few per cent and the scale would say nothing. Approaches beyond 50 lunar distances get no tag, since there is nothing useful to say about them. The counts are a floor: the archive holds the objects known today, and most of the undiscovered ones are small. The ≈ line beside a diameter compares size only. What an impact would do depends on speed, angle, composition and where it arrives, and none of that follows from width — the Chelyabinsk comparison in particular names a body remembered for its airburst, not for how wide it was.
| Name | Diameter (m) | Hazardous | Velocity (km/h) | Miss distance |
|---|---|---|---|---|
| (2015 WZ12) | 14.6 – 32.7
≈ the Chelyabinsk object
|
No | 37,220
30 times the speed of sound round the Earth in 65 minutes |
10,266,782 km 26.7 LD routine
about 138 times a year |
| (2018 BB5) | 35.0 – 78.4
≈ an airliner's wingspan
|
No | 78,825
64 times the speed of sound round the Earth in 31 minutes |
24,769,188 km 64.4 LD |
The tag beside a distance says how often an approach at least that close, by an object of that size, appears in 127 years of this archive — a frequency rather than a percentile, because almost every close approach would score in the top few per cent and the scale would say nothing. Approaches beyond 50 lunar distances get no tag, since there is nothing useful to say about them. The counts are a floor: the archive holds the objects known today, and most of the undiscovered ones are small. The ≈ line beside a diameter compares size only. What an impact would do depends on speed, angle, composition and where it arrives, and none of that follows from width — the Chelyabinsk comparison in particular names a body remembered for its airburst, not for how wide it was.
| Name | Diameter (m) | Hazardous | Velocity (km/h) | Miss distance |
|---|---|---|---|---|
| (2006 AM4) | 111.8 – 250.1
≈ the Great Pyramid
|
Yes | 87,613
71 times the speed of sound round the Earth in 27 minutes |
19,012,986 km 49.5 LD routine
about 101 times a year |
| (2007 RV9) | 227.3 – 508.2
≈ the Great Pyramid
|
Yes | 49,318
40 times the speed of sound round the Earth in 49 minutes |
15,576,264 km 40.5 LD routine
about 80 times a year |
| (2016 UX80) | 34.4 – 76.9
≈ an airliner's wingspan
|
No | 70,566
57 times the speed of sound round the Earth in 34 minutes |
39,089,492 km 102 LD |
| (2017 UE) | 11.1 – 24.8
≈ the Chelyabinsk object
|
No | 71,660
58 times the speed of sound round the Earth in 34 minutes |
61,003,900 km 159 LD |
| 886859 (2021 UN7) | 56.3 – 125.9
≈ a football pitch
|
No | 53,458
43 times the speed of sound round the Earth in 45 minutes |
15,312,408 km 39.8 LD routine
about 101 times a year |
The tag beside a distance says how often an approach at least that close, by an object of that size, appears in 127 years of this archive — a frequency rather than a percentile, because almost every close approach would score in the top few per cent and the scale would say nothing. Approaches beyond 50 lunar distances get no tag, since there is nothing useful to say about them. The counts are a floor: the archive holds the objects known today, and most of the undiscovered ones are small. The ≈ line beside a diameter compares size only. What an impact would do depends on speed, angle, composition and where it arrives, and none of that follows from width — the Chelyabinsk comparison in particular names a body remembered for its airburst, not for how wide it was.
| Name | Diameter (m) | Hazardous | Velocity (km/h) | Miss distance |
|---|---|---|---|---|
| 307493 (2002 XP90) | 513.5 – 1148.3
≈ the Burj Khalifa
|
No | 57,939
47 times the speed of sound round the Earth in 42 minutes |
45,865,644 km 119 LD |
| 447655 (2006 WA) | 268.3 – 599.8
≈ the Burj Khalifa
|
No | 51,669
42 times the speed of sound round the Earth in 47 minutes |
68,065,983 km 177 LD |
| 612856 (2004 TP1) | 188.2 – 420.8
≈ the Great Pyramid
|
Yes | 45,617
37 times the speed of sound round the Earth in 53 minutes |
9,300,212 km 24.2 LD routine
about 80 times a year |
| (2015 LJ) | 30.5 – 68.2
≈ an airliner's wingspan
|
No | 16,637
13 times the speed of sound round the Earth in 2.4 hours |
45,673,391 km 119 LD |
The tag beside a distance says how often an approach at least that close, by an object of that size, appears in 127 years of this archive — a frequency rather than a percentile, because almost every close approach would score in the top few per cent and the scale would say nothing. Approaches beyond 50 lunar distances get no tag, since there is nothing useful to say about them. The counts are a floor: the archive holds the objects known today, and most of the undiscovered ones are small. The ≈ line beside a diameter compares size only. What an impact would do depends on speed, angle, composition and where it arrives, and none of that follows from width — the Chelyabinsk comparison in particular names a body remembered for its airburst, not for how wide it was.
| Name | Diameter (m) | Hazardous | Velocity (km/h) | Miss distance |
|---|---|---|---|---|
| 524522 Zoozve (2002 VE68) | 207.3 – 463.5
≈ the Great Pyramid
|
Yes | 31,382
25 times the speed of sound round the Earth in 77 minutes |
6,018,477 km 15.7 LD routine
about 15 times a year |
| (2005 GU) | 262.2 – 586.2
≈ the Burj Khalifa
|
Yes | 97,799
79 times the speed of sound round the Earth in 25 minutes |
24,708,417 km 64.3 LD |
| (2007 TD) | 35.0 – 78.4
≈ an airliner's wingspan
|
No | 59,938
49 times the speed of sound round the Earth in 40 minutes |
23,542,560 km 61.2 LD |
| (2009 WW104) | 84.1 – 187.9
≈ a football pitch
|
No | 39,210
32 times the speed of sound round the Earth in 61 minutes |
12,607,881 km 32.8 LD routine
about 101 times a year |
| (2011 SR69) | 253.8 – 567.6
≈ the Burj Khalifa
|
No | 51,646
42 times the speed of sound round the Earth in 47 minutes |
51,714,951 km 135 LD |
| (2015 GW12) | 42.7 – 95.5
≈ an airliner's wingspan
|
No | 58,583
47 times the speed of sound round the Earth in 41 minutes |
52,353,783 km 136 LD |
| (2017 WP28) | 174.0 – 389.1
≈ the Great Pyramid
|
No | 70,460
57 times the speed of sound round the Earth in 34 minutes |
54,032,009 km 141 LD |
The tag beside a distance says how often an approach at least that close, by an object of that size, appears in 127 years of this archive — a frequency rather than a percentile, because almost every close approach would score in the top few per cent and the scale would say nothing. Approaches beyond 50 lunar distances get no tag, since there is nothing useful to say about them. The counts are a floor: the archive holds the objects known today, and most of the undiscovered ones are small. The ≈ line beside a diameter compares size only. What an impact would do depends on speed, angle, composition and where it arrives, and none of that follows from width — the Chelyabinsk comparison in particular names a body remembered for its airburst, not for how wide it was.
curl -sS https://devops.majbase.com/nasa-asteroids/apiReturns {"fetched_at", "start_date", "end_date", "element_count", "asteroids_by_date": {"YYYY-MM-DD": [...]}}, or {"error": "..."} if the data source is temporarily unavailable.
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~/.claude/skills/nasa-asteroids/SKILL.md