RECON: TNO occultation with 341275

Event between (341275) 07RG283 and star GA1220:03166777 with event index number of 1305128

Geocentric closest approach at 2024/02/03 10:52:05 UTC

J2000 position of star is 07:33:22.0 +33:26:54
Equinox of date position of star is 07:34:36.6 +33:24:20
Stellar brightness G=12.9, use SENSEUP=32
Star is 120 degrees from the moon. Moon is 45% illuminated.
TNO apparent brightness V=20.5

[RECON map]
TNO is 15.3 AU from the Sun and 14.4 AU from the Earth.
The TNO is moving 21.1 km/sec on the sky relative to the star, or, 7.3 arcsec/hr.
The 1-sigma error in the time of the event is 344 seconds.
The 1-sigma cross-track error in the shadow position is 5117 km.
The sky-plane scale is 10456.2 km/arcsec.

The TNO has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 5.5 sec chord
Diameter=46.9 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 341275, (2024/02/03 10:52UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:47.4 +27:57:58  1.1  6.00 117
71Omi Gem      07:40:44.1 +34:31:37  5.2  1.65 119
PPM 072932     07:35:58.0 +33:04:04  8.1  0.39 120
PPM 072891     07:33:57.9 +33:26:52  9.7  0.21 120
341275         07:34:55.6 +33:23:41 12.9       119
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 2.6 sigma about the mid-time.
The median site spacing is 15.5 km RECON observability=1.0 and success probability=8.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 10:48:54 -44.1 Dark Up 42.0 274.7 Up 10:33:54 - 11:03:54 -577
Summerland 10:48:54 -44.4 Dark Up 42.1 274.8 Up 10:33:54 - 11:03:54 -612
Penticton 10:48:54 -44.4 Dark Up 42.1 275.0 Up 10:33:54 - 11:03:54 -615
Okanagan Falls 10:48:53 -44.5 Dark Up 42.1 275.1 Up 10:33:53 - 11:03:53 -633
Oliver 10:48:52 -44.5 Dark Up 42.0 275.3 Up 10:33:52 - 11:03:52 -648
Anarchist Mountain Observatory 10:48:52 -44.5 Dark Up 41.9 275.6 Up 10:33:52 - 11:03:52 -658
Oroville 10:48:52 -44.6 Dark Up 41.9 275.6 Up 10:33:52 - 11:03:52 -667
Tonasket 10:48:51 -44.7 Dark Up 41.9 275.8 Up 10:33:51 - 11:03:51 -688
Okanogan 10:48:50 -45.0 Dark Up 42.0 276.0 Up 10:33:50 - 11:03:50 -724
Brewster 10:48:50 -45.2 Dark Up 42.1 276.1 Up 10:33:50 - 11:03:50 -755
Manson/Chelan 10:48:50 -45.6 Dark Up 42.3 276.0 Up 10:33:50 - 11:03:50 -786
Entiat 10:48:49 -45.7 Dark Up 42.3 276.2 Up 10:33:49 - 11:03:49 -809
Wenatchee 10:48:49 -45.9 Dark Up 42.4 276.3 Up 10:33:49 - 11:03:49 -836
Ellensburg 10:48:48 -46.3 Dark Up 42.5 276.6 Up 10:33:48 - 11:03:48 -881
Pasco 10:48:43 -45.8 Dark Up 41.4 278.1 Up 10:33:43 - 11:03:43 -906
Yakima 10:48:47 -46.5 Dark Up 42.4 276.9 Up 10:33:47 - 11:03:47 -920
PNWRO 10:48:42 -45.8 Dark Up 41.2 278.5 Up 10:33:42 - 11:03:42 -922
Toppenish/White Swan 10:48:46 -46.5 Dark Up 42.3 277.2 Up 10:33:46 - 11:03:46 -935
George/Umatilla 10:48:43 -46.1 Dark Up 41.5 278.3 Up 10:33:43 - 11:03:43 -945
Niwot 10:48:04 -38.4 Dark Up 30.2 290.1 Up 10:33:04 - 11:03:04 -948
SwRI 10:48:04 -38.5 Dark Up 30.2 290.1 Up 10:33:04 - 11:03:04 -961
Goldendale 10:48:45 -47.0 Dark Up 42.5 277.4 Up 10:33:45 - 11:03:45 -1001
The Dalles 10:48:46 -47.4 Dark Up 42.7 277.4 Up 10:33:46 - 11:03:46 -1034
Maupin 10:48:44 -47.5 Dark Up 42.6 277.9 Up 10:33:44 - 11:03:44 -1071
Madras/Culver 10:48:43 -47.8 Dark Up 42.6 278.3 Up 10:33:43 - 11:03:43 -1124
Redmond 10:48:42 -48.0 Dark Up 42.6 278.6 Up 10:33:42 - 11:03:42 -1160
Sisters 10:48:43 -48.2 Dark Up 42.8 278.4 Up 10:33:43 - 11:03:43 -1171
Bend 10:48:42 -48.2 Dark Up 42.6 278.7 Up 10:33:42 - 11:03:42 -1186
Oregon Observatory 10:48:42 -48.4 Dark Up 42.7 278.8 Up 10:33:42 - 11:03:42 -1206
La Pine/Gilchrist 10:48:41 -48.5 Dark Up 42.7 279.0 Up 10:33:41 - 11:03:41 -1228
North Lake 10:48:39 -48.3 Dark Up 42.2 279.7 Up 10:33:39 - 11:03:39 -1250
Paisley 10:48:37 -48.4 Dark Up 41.9 280.4 Up 10:33:37 - 11:03:37 -1292
Lakeview 10:48:35 -48.5 Dark Up 41.6 280.9 Up 10:33:35 - 11:03:35 -1334
Chiloquin 10:48:39 -49.3 Dark Up 42.8 279.8 Up 10:33:39 - 11:03:39 -1348
Klamath Falls 10:48:38 -49.4 Dark Up 42.7 280.1 Up 10:33:38 - 11:03:38 -1378
Cedarville 10:48:33 -48.6 Dark Up 41.4 281.6 Up 10:33:33 - 11:03:33 -1392
Tulelake 10:48:37 -49.3 Dark Up 42.4 280.5 Up 10:33:37 - 11:03:37 -1395
Fall River/Burney 10:48:35 -49.7 Dark Up 42.2 281.4 Up 10:33:35 - 11:03:35 -1481
Susanville 10:48:32 -49.4 Dark Up 41.5 282.3 Up 10:33:32 - 11:03:32 -1517
Gimple 10:48:32 -49.7 Dark Up 41.6 282.4 Up 10:33:32 - 11:03:32 -1552
Greenville 10:48:32 -49.8 Dark Up 41.7 282.4 Up 10:33:32 - 11:03:32 -1554
Portola 10:48:30 -49.6 Dark Up 41.3 282.9 Up 10:33:30 - 11:03:30 -1570
Reno 10:48:28 -49.2 Dark Up 40.7 283.4 Up 10:33:28 - 11:03:28 -1573
Quincy 10:48:31 -49.9 Dark Up 41.6 282.6 Up 10:33:31 - 11:03:31 -1574
Yerington 10:48:25 -49.0 Dark Up 40.1 284.2 Up 10:33:25 - 11:03:25 -1604
Carson City 10:48:27 -49.3 Dark Up 40.6 283.8 Up 10:33:27 - 11:03:27 -1607
Tonopah 10:48:19 -47.9 Dark Up 38.4 285.8 Up 10:33:19 - 11:03:19 -1623
Gardnerville 10:48:26 -49.4 Dark Up 40.5 284.0 Up 10:33:26 - 11:03:26 -1630
Hawthorne 10:48:23 -48.8 Dark Up 39.6 284.8 Up 10:33:23 - 11:03:23 -1630
Lee Vining 10:48:23 -49.3 Dark Up 39.8 285.1 Up 10:33:23 - 11:03:23 -1703
Indian Springs 10:48:12 -47.2 Dark Up 36.8 287.6 Up 10:33:12 - 11:03:12 -1708
Beatty 10:48:15 -47.9 Dark Up 37.7 286.9 Up 10:33:15 - 11:03:15 -1718
Henderson 10:48:10 -46.8 Dark Up 36.1 288.2 Up 10:33:10 - 11:03:10 -1732
Bishop 10:48:20 -49.0 Dark Up 39.1 285.8 Up 10:33:20 - 11:03:20 -1735
Patrick 10:48:06 -46.1 Dark Up 35.1 289.1 Up 10:33:06 - 11:03:06 -1747
DCO 10:48:04 -45.6 Dark Up 34.4 289.6 Up 10:33:04 - 11:03:04 -1748
Kingman/Dolan Springs 10:48:06 -46.3 Dark Up 35.2 289.2 Up 10:33:06 - 11:03:06 -1777
Searchlight/Boulder City 10:48:09 -46.9 Dark Up 35.9 288.6 Up 10:33:09 - 11:03:09 -1785
Lone Pine 10:48:18 -49.0 Dark Up 38.6 286.6 Up 10:33:18 - 11:03:18 -1797
Laughlin/Bullhead City 10:48:07 -46.7 Dark Up 35.5 289.0 Up 10:33:07 - 11:03:07 -1800
Mohave Valley 10:48:07 -46.8 Dark Up 35.5 289.2 Up 10:33:07 - 11:03:07 -1826
Lake Havasu City 10:48:05 -46.7 Dark Up 35.1 289.5 Up 10:33:05 - 11:03:05 -1855
Parker 10:48:05 -46.7 Dark Up 35.0 289.8 Up 10:33:05 - 11:03:05 -1888
Blythe 10:48:04 -47.1 Dark Up 35.1 290.0 Up 10:33:04 - 11:03:04 -1951
CPSLO 10:48:21 -51.4 Dark Up 40.3 286.6 Up 10:33:21 - 11:03:21 -2023
Idyllwild 10:48:09 -48.8 Dark Up 36.7 289.2 Up 10:33:09 - 11:03:09 -2026
Calipatria 10:48:05 -47.9 Dark Up 35.6 290.0 Up 10:33:05 - 11:03:05 -2038
Yuma 10:48:02 -47.3 Dark Up 34.8 290.6 Up 10:33:02 - 11:03:02 -2043
Wildwood 10:48:14 -50.2 Dark Up 38.3 288.3 Up 10:33:14 - 11:03:14 -2065

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 341275, (2024/02/03 10:52UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1  6.00 117
71Omi Gem      07:39:09.9 +34:35:01  5.2  1.65 119
PPM 072932     07:34:24.7 +33:07:19  8.1  0.39 120
PPM 072891     07:32:24.3 +33:30:03  9.7  0.21 120
341275         07:33:22.0 +33:26:54 12.9       120
Positions are for J2000

Event circumstances last updated at 2019/03/21 00:42:09 UT

Marc W. Buie, Southwest Research Institute

RECON