59100 Object C
matches 24 hours later
2 Likes
Updated PY4 TLEs below for those that are interested. Generated from on-board GPS.
As it stands, the TLEs in SatNOGS DB are all correct except for PY4-3, which should be updated to Object AZ (which is currently identified as MH-1). Time will tell whether or not Object AZ is a PY4 bird or MH-1, but for now our GPS solutions are a strongest match for that object.
To summarize the current PY4 object guesses:
PY4-1 = Object AS
PY4-2 = Object AT
PY4-3 = Object AZ
PY4-4 = Object AY
The custom TLEs for those that are interested:
PY4-1
1 98954U 24043D 24083.91192100 .00000000 00000+0 23559-2 0 06
2 98954 97.4544 208.9952 0010582 223.1777 276.0144 15.18161515 08
PY4-2
1 98955U 24043D 24083.30174800 .00000000 00000+0 23681-2 0 03
2 98955 97.4558 208.3928 0010825 225.9343 180.0139 15.18105982 04
PY4-3
1 98956U 24043K 24084.28452500 .00000000 00000+0 24374-2 0 08
2 98956 97.4642 209.3897 0011315 209.3343 187.3977 15.18550631 01
PY4-4
1 98957U 24043K 24084.28557900 .00000000 00000+0 25062-2 0 04
2 98957 97.4655 209.3919 0011263 211.2419 191.6758 15.18557028 01
3 Likes
SONATE-2 will switch on its SSTV transmitter again over Easter. You can find the planned transmission schedule here.
4 Likes
PY4-3 is listed under NORAD 59145, however this ID is assigned a sat MH-1 in space-track.org. In fact the correct ID seems to be 59143 (OBJECT-AX). Pls check.
This was done on purpose following this suggestion.
@maholli any opinion for 59143 (OBJECT-AX)? Does it match GPS data from PY4-3?
It’s always possible we could be wrong, but as of our last analysis on March 25, OBJECT-AX was no where close to being a PY4 candidate, whereas OBJECT AZ (MH-1) had a consistent sub 10-meter fit.
I’ll have time to do another comparison early next week and report back with our findings.
2 Likes
space-track.org identifications
| NORAD ID (space-track link) | Satellite (SatNOGS DB link) | Possible satellite (if not identified) | Frequency (if identified) |
|---|---|---|---|
| 59098 | HORACIO | ||
| 59099 | MUSAT2 | 8205.000 MHz, 8385.000 MHz, 8390.000 MHz | |
| 59100 | ICEYE-X38 | ~2276.000 MHz 401.250 MHz | |
| 59101 | METHANESAT | 2234.500 MHz, 8175.000 MHz | |
| 59102 | ICEYE-X37 | 2236.511 MHz 401.250 MHz | |
| 59103 | ICEYE-X36 | ~2276.000 MHz 401.250 MHz | |
| 59104 | PE2_FLT2 (TYVAK-0262) | 401.340 MHz, 2492.000 MHz, 8320.000 MHz | |
| 59105 | PE2_FLT1 (TYVAK-0261) | 400.840 MHz, 2492.000 MHz, 8320.000 MHz | |
| 59106 | RROCI-2 | 8125.000 MHz, 2217.000 MHz, 2085.500 MHz? | |
| 59107 | BRO-13 | 401.735 MHz, 2260.500 MHz | |
| 59108 | BRO-12 | 401.735 MHz, 2260.500 MHz | |
| 59109 | OBJECT M | ||
| 59110 | OBJECT N | ONDOSAT-OWL-1 | |
| 59111 | OBJECT P | IRIS-F1 (This post and this post may confirm this is IRIS-F1) | 400.915 MHz |
| 59112 | SONATE-2 | 145.840 MHz, 437.025 MHz, 2268.000 MHz | |
| 59113 | OBJECT R | ONDOSAT-OWL-2 | |
| 59114 | OBJECT S | ||
| 59115 | LEMUR 2 CHARLIE-ROSE | 400.520 MHz? | |
| 59116 | LEMUR 2 FELDHUS | 400.520 MHz | |
| 59117 | CONTECSAT-1 | 401.050 MHz, 2220.000 MHz, 8110.000 MHz | |
| 59118 | CBAS-LACE 1 | ||
| 59119 | OBJECT X | ||
| 59120 | TIGER-8 | ||
| 59121 | LYNK TOWER 5 | ||
| 59122 | NUSAT-44 MARIA MITCHELL | 8030.000 MHz 8075.000 MHz 400.875 MHz | |
| 59123 | LYNK TOWER 6 | ||
| 59124 | VSP ROSE | ||
| 59125 | OBJECT AD | 401.500 MHz | |
| 59126 | YAM-6 | 400.875 MHz, 2277.300 MHz, 8125.000 MHz | |
| 59127 | OBJECT AF | ||
| 59128 | OBJECT AG | ||
| 59129 | APEX ARIES 1 | 401.075 MHz | |
| 59130 | GHOST-5 | 400.503 MHz | |
| 59131 | MESON-1 | ||
| 59132 | LIZZIESAT | 400.520 MHz, 2201.250 MHz, 2262.500 MHz, 2283.250 MHz, 8045.250 MHz, 8378.250 MHz | |
| 59133 | GHOST-4 | 400.500 MHz | |
| 59134 | OBJECT AN | ||
| 59135 | VSP RF A1 | ||
| 59136 | VSP RF C1 | ||
| 59137 | VSP RF B1 | ||
| 59138 | OBJECT AS | PY4-1 | |
| 59139 | OBJECT AT | PY4-2 | |
| 59140 | SENTRY | 401.500 MHz | |
| 59141 | TIGER-7 | ||
| 59142 | OBJECT AW | ||
| 59143 | OBJECT AX | PY4-3 | |
| 59144 | OBJECT AY | PY4-4 | |
| 59145 | MH-1 | PY4-3 | 2245.000 MHz |
| 59146 | LEMUR 2 JOHNNYTRUONG | ~400.55 - ~402.788 MHz | |
| 59147 | LEMUR 2 ROCINANTE | ~400.55 - ~402.788 MHz | |
| 59148 | HAMMER |
Identified satellites not in DB: 13
Unidentified objects: 15
Unidentified DB entries: 12 (IRIS-F1, ONDOSAT-OWL-1, ONDOSAT-OWL-2, PY4-1, PY4-2, PY4-3, PY4-4, JACKAL X-1L-001, JACKAL X-1L-002, ROSE, OPTIMUS 2, PYXIS)
3 Likes
59115 LEMUR 2 CHARLIE ROSE
ID’d on 400.550 , added transmitter as unconfirmed and scheduled some obs.
1 Like
59121 on 2260 MHz S-band
LYNK TOWER 5 as mentioned on N2YO.com. 2 passes with close to 24 hours between them
3 Likes
59120 TIGER-8 also probably id’d
2 Likes
59147 LEMUR 2 ROCINANTE
suggested on 2260 MHz but as unconfirmed, the HackRF at 20 Msps shows some signals 20 MHz below of above the true frequency. Will schedule after satellite is added to DB
2 Likes
Possible image of the TP10 payload(s) from Can Space Start-Ups Really Wait A Year For Satellite Approval? - Payload
