RECON: TNO occultation with 449097

Event between (449097) 12UT68 and star GA1220:03398814 with event index number of 1317083

Geocentric closest approach at 2024/01/07 06:44:47 UTC

J2000 position of star is 09:15:22.0 +32:59:11
Equinox of date position of star is 09:16:34.7 +32:54:10
Stellar brightness G=14.7, use SENSEUP=128
Star is 101 degrees from the moon. Moon is 21% illuminated.
TNO apparent brightness V=21.8

[RECON map]
TNO is 16.3 AU from the Sun and 15.4 AU from the Earth.
The TNO is moving 20.2 km/sec on the sky relative to the star, or, 6.5 arcsec/hr.
The 1-sigma error in the time of the event is 221 seconds.
The 1-sigma cross-track error in the shadow position is 3134 km.
The sky-plane scale is 11204.4 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=72.4 km assuming a 5% albedo -- 3.6 sec chord
Diameter=29.6 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 449097, (2024/01/07 06:45UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:47.1 +27:57:58  1.1 19.98 119
PPM 074277     09:10:19.2 +33:47:00  6.4  1.63 103
PPM 074384     09:18:45.5 +33:23:55  7.6  0.65 101
PPM 074368     09:17:00.6 +33:00:02  9.9  0.12 101
449097         09:16:49.5 +32:53:08 14.7       101
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 4.1 sigma about the mid-time.
The median site spacing is 27.6 km RECON observability=1.0 and success probability=14.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 06:48:07 -58.5 Dark Down 49.9 96.1 Up 06:33:07 - 07:03:07 -1689
Kelowna 06:48:07 -58.8 Dark Down 49.8 95.5 Up 06:33:07 - 07:03:07 -1730
Summerland 06:48:08 -58.9 Dark Down 49.7 95.0 Up 06:33:08 - 07:03:08 -1759
Penticton 06:48:08 -59.0 Dark Down 49.8 95.0 Up 06:33:08 - 07:03:08 -1767
Oliver 06:48:08 -59.3 Dark Down 49.8 94.6 Up 06:33:08 - 07:03:08 -1805
Anarchist Mountain Observatory 06:48:08 -59.5 Dark Down 50.0 94.6 Up 06:33:08 - 07:03:08 -1825
Victoria 06:48:19 -58.2 Dark Down 47.4 90.9 Up 06:33:19 - 07:03:19 -1855
Tonasket 06:48:08 -59.8 Dark Down 50.0 94.2 Up 06:33:08 - 07:03:08 -1859
Okanogan 06:48:08 -60.0 Dark Down 49.9 93.6 Up 06:33:08 - 07:03:08 -1895
Brewster 06:48:09 -60.1 Dark Down 49.8 93.2 Up 06:33:09 - 07:03:09 -1924
Manson/Chelan 06:48:10 -60.1 Dark Down 49.5 92.6 Up 06:33:10 - 07:03:10 -1946
Entiat 06:48:11 -60.3 Dark Down 49.5 92.3 Up 06:33:11 - 07:03:11 -1970
Wenatchee 06:48:11 -60.4 Dark Down 49.4 91.9 Up 06:33:11 - 07:03:11 -1997
Ellensburg 06:48:12 -60.6 Dark Down 49.3 91.3 Up 06:33:12 - 07:03:12 -2042
Yakima 06:48:12 -60.9 Dark Down 49.3 90.8 Up 06:33:12 - 07:03:12 -2087
Toppenish/White Swan 06:48:12 -61.2 Dark Down 49.4 90.7 Up 06:33:12 - 07:03:12 -2111
Pasco 06:48:09 -61.8 Dark Down 50.3 91.5 Up 06:33:09 - 07:03:09 -2131
PNWRO 06:48:08 -62.1 Dark Down 50.5 91.3 Up 06:33:08 - 07:03:08 -2159
Goldendale 06:48:14 -61.4 Dark Down 49.1 89.7 Up 06:33:14 - 07:03:14 -2170
The Dalles 06:48:14 -61.4 Dark Down 48.9 89.2 Up 06:33:14 - 07:03:14 -2193
Maupin 06:48:15 -61.8 Dark Down 48.9 88.8 Up 06:33:15 - 07:03:15 -2240
Sisters 06:48:17 -62.1 Dark Down 48.6 87.5 Up 06:33:17 - 07:03:17 -2334
Redmond 06:48:15 -62.4 Dark Down 48.9 87.7 Up 06:33:15 - 07:03:15 -2339
Bend 06:48:16 -62.4 Dark Down 48.7 87.4 Up 06:33:16 - 07:03:16 -2362
Oregon Observatory 06:48:16 -62.5 Dark Down 48.6 87.1 Up 06:33:16 - 07:03:16 -2381
La Pine/Gilchrist 06:48:17 -62.6 Dark Down 48.6 86.8 Up 06:33:17 - 07:03:17 -2403
North Lake 06:48:15 -63.2 Dark Down 49.0 86.7 Up 06:33:15 - 07:03:15 -2455
Paisley 06:48:14 -63.8 Dark Down 49.2 86.3 Up 06:33:14 - 07:03:14 -2518
Klamath Falls 06:48:18 -63.5 Dark Down 48.3 85.0 Up 06:33:18 - 07:03:18 -2562
Lakeview 06:48:14 -64.3 Dark Down 49.3 85.8 Up 06:33:14 - 07:03:14 -2576
Cedarville 06:48:13 -64.8 Dark Down 49.4 85.2 Up 06:33:13 - 07:03:13 -2649
Fall River/Burney 06:48:17 -64.4 Dark Down 48.5 83.9 Up 06:33:17 - 07:03:17 -2695
Susanville 06:48:15 -65.3 Dark Down 48.9 83.6 Up 06:33:15 - 07:03:15 -2770
Niwot 06:47:23 -71.9 Dark Down 60.6 92.5 Up 06:32:23 - 07:02:23 -2783
SwRI 06:47:24 -71.9 Dark Down 60.5 92.3 Up 06:32:24 - 07:02:24 -2795
Greenville 06:48:15 -65.3 Dark Down 48.7 83.2 Up 06:33:15 - 07:03:15 -2798
Gimple 06:48:16 -65.3 Dark Down 48.8 83.2 Up 06:33:16 - 07:03:16 -2799
Quincy 06:48:15 -65.4 Dark Down 48.7 82.9 Up 06:33:15 - 07:03:15 -2821
Portola 06:48:15 -65.8 Dark Down 49.0 83.0 Up 06:33:15 - 07:03:15 -2838
Reno 06:48:12 -66.3 Dark Down 49.5 83.1 Up 06:33:12 - 07:03:12 -2871
Carson City 06:48:12 -66.6 Dark Down 49.4 82.7 Up 06:33:12 - 07:03:12 -2911
Yerington 06:48:11 -67.1 Dark Down 49.9 82.8 Up 06:33:11 - 07:03:11 -2936
Gardnerville 06:48:12 -66.8 Dark Down 49.5 82.4 Up 06:33:12 - 07:03:12 -2938
Hawthorne 06:48:09 -67.7 Dark Down 50.3 82.5 Up 06:33:09 - 07:03:09 -2990
Tonopah 06:48:04 -68.8 Dark Down 51.3 82.6 Up 06:33:04 - 07:03:04 -3047
Lee Vining 06:48:10 -67.8 Dark Down 49.8 81.6 Up 06:33:10 - 07:03:10 -3050
Bishop 06:48:08 -68.6 Dark Down 50.3 81.2 Up 06:33:08 - 07:03:08 -3119
Beatty 06:48:02 -69.8 Dark Down 51.5 81.4 Up 06:33:02 - 07:03:02 -3176
Indian Springs 06:47:59 -70.7 Dark Down 52.3 81.4 Up 06:32:59 - 07:02:59 -3214
Henderson 06:47:56 -71.5 Dark Down 52.7 81.0 Up 06:32:56 - 07:02:56 -3273
CPSLO 06:48:15 -68.3 Dark Down 48.1 77.9 Up 06:33:15 - 07:03:15 -3333
Searchlight/Boulder City 06:47:55 -71.9 Dark Down 52.7 80.3 Up 06:32:55 - 07:02:55 -3337
Patrick 06:47:52 -72.5 Dark Down 53.5 80.7 Up 06:32:52 - 07:02:52 -3343
Kingman/Dolan Springs 06:47:52 -72.6 Dark Down 53.3 80.3 Up 06:32:52 - 07:02:52 -3367
Laughlin/Bullhead City 06:47:54 -72.3 Dark Down 52.9 80.1 Up 06:32:54 - 07:02:54 -3370
DCO 06:47:49 -73.2 Dark Down 54.0 80.5 Up 06:32:49 - 07:02:49 -3376
Mohave Valley 06:47:54 -72.5 Dark Down 52.9 79.7 Up 06:32:54 - 07:02:54 -3400
Lake Havasu City 06:47:53 -72.9 Dark Down 53.0 79.3 Up 06:32:53 - 07:02:53 -3444
Wildwood 06:48:08 -70.3 Dark Down 49.5 77.3 Up 06:33:08 - 07:03:08 -3478
Parker 06:47:53 -73.2 Dark Down 52.9 78.8 Up 06:32:53 - 07:02:53 -3482
Idyllwild 06:48:01 -71.8 Dark Down 50.9 77.5 Up 06:33:01 - 07:03:01 -3524
George/Scottsdale 06:47:44 -74.9 Dark Down 54.8 79.1 Up 06:32:44 - 07:02:44 -3526
Blythe 06:47:54 -73.3 Dark Down 52.6 78.1 Up 06:32:54 - 07:02:54 -3540
Calipatria 06:47:57 -73.0 Dark Down 51.7 77.1 Up 06:32:57 - 07:02:57 -3593
Yuma 06:47:53 -73.8 Dark Down 52.4 76.9 Up 06:32:53 - 07:02:53 -3641

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 449097, (2024/01/07 06:45UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 19.98 119
PPM 074277     09:08:50.8 +33:52:54  6.4  1.63 103
PPM 074384     09:17:17.9 +33:30:01  7.6  0.65 101
PPM 074368     09:15:33.1 +33:06:05  9.9  0.12 101
449097         09:15:22.0 +32:59:11 14.7       101
Positions are for J2000

Event circumstances last updated at 2019/12/10 23:07:37 UT

Marc W. Buie, Southwest Research Institute

RECON