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Action required
1 critical
5 caution
2 source degraded
K
01 AUG
14:32:00
UTC
Queue
Timeline
Planner
Active conjunctions
8 screening
COSMOS 2251 DEB
34454
T−09:13:48
4.6
×10
−4
0.412 km
miss
rising
OG-2
decide in 3h 19m
SL-16 R/B DEB
23705
T−05:06:00
3.2
×10
−5
1.880 km
miss
flat
OG-1
window closed
FENGYUN 1C DEB
30291
T−21:48:00
8.6
×10
−5
0.884 km
miss
falling
OG-3
decide in 13h 30m
SL-8 R/B
16182
T−33:01:48
6.8
×10
−5
1.240 km
miss
flat
OG-5
decide in 1d 1h
IRIDIUM 33 DEB
33759
T−52:12:00
5.0
×10
−5
1.710 km
miss
falling
OG-1
decide in 1d 20h
UNCHARACTERIZED OBJECT
99214
T−64:00:00
3.3
×10
−5
0.960 km
miss
rising
OG-5
decide in 2d 8h
STARLINK-1436
45657
T−40:30:00
9.5
×10
−6
2.030 km
miss
falling
OG-6
decide in 1d 9h
COSMOS 1408 DEB
49271
T−58:24:00
8.0
×10
−6
3.420 km
miss
falling
OG-4
decide in 2d 2h
Probability of collision · now −12h → +72h
log scale · ±1σ
SL-16 R/B DEB
SL-16 R/B DEB
CJ-4474 · OG-1
T−05:06:00
COSMOS 2251 DEB
COSMOS 2251 DEB
CJ-4471 · OG-2
T−09:13:48
FENGYUN 1C DEB
FENGYUN 1C DEB
CJ-4468 · OG-3
T−21:48:00
SL-8 R/B
SL-8 R/B
CJ-4465 · OG-5
T−33:01:48
STARLINK-1436
STARLINK-1436
CJ-4462 · OG-6
T−40:30:00
IRIDIUM 33 DEB
IRIDIUM 33 DEB
CJ-4459 · OG-1
T−52:12:00
COSMOS 1408 DEB
COSMOS 1408 DEB
CJ-4455 · OG-4
T−58:24:00
UNCHARACTERIZED OB…
UNCHARACTERIZED OBJECT
CJ-4451 · OG-5
T−64:00:00
NOW
-12h
T0
+12h
+24h
+36h
+48h
+60h
+72h
Pc scale 1×10⁻⁷ → 1×10⁻² per lane · dashed = projection · band = ±1σ
Maneuver planner
CJ-4471
Proposed burn
OG-2 · Meridian-2
Delta-v
0.34
m/s
Propellant
0.049
kg
Axis
in-track
Burn duration
44
s
Execute
2026-08-01 17:32:00Z
Upload pass
Svalbard (SG-1) · T−02:18:00
Effect on CJ-4471
Pc now
4.6
×10
−4
Pc after
8.2
×10
−8
Miss now
0.412
km
Miss after
4.870
km
Station-keeping budget
1.4 yr runway
4.771 kg after burn
reserve 2.2 · capacity 12.4 kg
Downstream conjunctions
4 affected
COSMOS 2251 DEB
resolved
CJ-4471 · T+9.2h
4.7
×10
−4
8.2
×10
−8
SL-16 R/B DEB
created
CJ-4489 · T+34.1h
—
3.3
×10
−6
FENGYUN 1C DEB
created
CJ-4491 · T+51.2h
—
1.1
×10
−6
COSMOS 2251 DEB
improved
CJ-4463 · T+61.4h
5.2
×10
−6
1.1
×10
−7
Commit within
3h 19m
or the window closes.
Commit maneuver
18 SDS · Space-Track
46m
/ 8h 00m
LeoLabs Radar Network
12m
/ 1h 30m
COMSPOC ASTRIAGraph
31m
/ 3h 00m
Slingshot Optical
1h 14m
/ 1h 00m
ESA SST
3h 34m
/ 2h 00m
Fleet GNSS Downlink
1m
/ 5m