RECON: TNO occultation with 02CW224

Event between 02CW224 and star GA1180:02135765 with event index number of 1266030

Geocentric closest approach at 2024/02/11 08:30:57 UTC

J2000 position of star is 06:04:19.0 +29:12:37
Equinox of date position of star is 06:05:33.2 +29:12:29
Stellar brightness G=15.4, use SENSEUP=128
Star is 109 degrees from the moon. Moon is 3% illuminated.
TNO apparent brightness V=22.5

[RECON map]
TNO is 33.5 AU from the Sun and 32.9 AU from the Earth.
The TNO is moving 14.1 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 763 seconds.
The 1-sigma cross-track error in the shadow position is 2896 km.
The sky-plane scale is 23866.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=227.0 km assuming a 5% albedo -- 16.1 sec chord
Diameter=92.7 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 02CW224, (2024/02/11 08:31UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:28.7 +07:24:34  0.4 21.91 105
Alnath         05:27:49.1 +28:37:33  1.6  8.34 101
PPM 095117     05:58:05.7 +28:56:38  6.5  1.72 108
PPM 095383     06:07:38.5 +28:55:51  7.9  0.48 110
PPM 095336     06:05:55.5 +28:58:54  8.8  0.23 109
PPM 095347     06:06:31.8 +29:18:27 10.8  0.18 109
02CW224        06:05:51.1 +29:12:27 15.4       110
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 1.2 sigma about the mid-time.
The median site spacing is 20.7 km RECON observability=1.0 and success probability=9.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 08:26:19 -54.1 Dark Down 42.8 266.2 Up 08:11:19 - 08:41:19 4691
Summerland 08:26:21 -54.4 Dark Down 43.0 266.2 Up 08:11:21 - 08:41:21 4656
Penticton 08:26:20 -54.5 Dark Down 42.9 266.4 Up 08:11:20 - 08:41:20 4652
Okanagan Falls 08:26:19 -54.7 Dark Down 42.9 266.5 Up 08:11:19 - 08:41:19 4634
Oliver 08:26:19 -54.8 Dark Down 42.9 266.7 Up 08:11:19 - 08:41:19 4619
Anarchist Mountain Observatory 08:26:17 -55.0 Dark Down 42.8 267.0 Up 08:11:17 - 08:41:17 4606
Oroville 08:26:17 -55.1 Dark Down 42.9 267.0 Up 08:11:17 - 08:41:17 4597
Tonasket 08:26:16 -55.3 Dark Down 42.9 267.2 Up 08:11:16 - 08:41:16 4575
Okanogan 08:26:15 -55.7 Dark Down 43.0 267.4 Up 08:11:15 - 08:41:15 4539
Brewster 08:26:15 -55.9 Dark Down 43.2 267.5 Up 08:11:15 - 08:41:15 4508
Manson/Chelan 08:26:15 -56.2 Dark Down 43.4 267.4 Up 08:11:15 - 08:41:15 4479
Entiat 08:26:15 -56.4 Dark Down 43.5 267.6 Up 08:11:15 - 08:41:15 4456
Wenatchee 08:26:14 -56.7 Dark Down 43.6 267.7 Up 08:11:14 - 08:41:14 4429
Ellensburg 08:26:12 -57.1 Dark Down 43.7 268.0 Up 08:11:12 - 08:41:12 4383
Pasco 08:26:05 -57.7 Dark Down 42.8 269.7 Up 08:11:05 - 08:41:05 4344
Yakima 08:26:10 -57.5 Dark Down 43.8 268.3 Up 08:11:10 - 08:41:10 4343
Toppenish/White Swan 08:26:11 -57.7 Dark Down 43.6 268.7 Up 08:11:11 - 08:41:11 4325
PNWRO 08:26:04 -58.0 Dark Down 42.6 270.1 Up 08:11:04 - 08:41:04 4325
George/Umatilla 08:26:06 -58.1 Dark Down 42.9 269.9 Up 08:11:06 - 08:41:06 4305
Goldendale 08:26:10 -58.3 Dark Down 44.0 268.9 Up 08:11:10 - 08:41:10 4261
The Dalles 08:26:11 -58.5 Dark Down 44.2 268.8 Up 08:11:11 - 08:41:11 4230
Maupin 08:26:09 -58.9 Dark Down 44.1 269.3 Up 08:11:09 - 08:41:09 4190
Niwot 08:25:02 -59.8 Dark Down 32.2 282.9 Up 08:10:02 - 08:40:02 4155
SwRI 08:25:02 -60.0 Dark Down 32.2 282.9 Up 08:10:02 - 08:40:02 4141
Madras/Culver 08:26:07 -59.5 Dark Down 44.2 269.8 Up 08:11:07 - 08:41:07 4135
Redmond 08:26:06 -59.8 Dark Down 44.2 270.1 Up 08:11:06 - 08:41:06 4098
Sisters 08:26:08 -59.8 Dark Down 44.5 269.8 Up 08:11:08 - 08:41:08 4090
Bend 08:26:06 -60.1 Dark Down 44.3 270.2 Up 08:11:06 - 08:41:06 4073
Oregon Observatory 08:26:06 -60.2 Dark Down 44.4 270.3 Up 08:11:06 - 08:41:06 4052
La Pine/Gilchrist 08:26:05 -60.4 Dark Down 44.5 270.5 Up 08:11:05 - 08:41:05 4030
North Lake 08:26:01 -60.8 Dark Down 44.0 271.3 Up 08:11:01 - 08:41:01 4001
Paisley 08:25:59 -61.4 Dark Down 43.8 272.1 Up 08:10:59 - 08:40:59 3954
Chiloquin 08:26:03 -61.6 Dark Down 44.7 271.3 Up 08:11:03 - 08:41:03 3909
Lakeview 08:25:56 -61.9 Dark Down 43.6 272.7 Up 08:10:56 - 08:40:56 3908
Klamath Falls 08:26:01 -61.9 Dark Down 44.7 271.7 Up 08:11:01 - 08:41:01 3876
Tulelake 08:26:00 -62.2 Dark Down 44.4 272.2 Up 08:11:00 - 08:41:00 3856
Cedarville 08:25:54 -62.5 Dark Down 43.4 273.4 Up 08:10:54 - 08:40:54 3846
Fall River/Burney 08:25:57 -63.1 Dark Down 44.3 273.1 Up 08:10:57 - 08:40:57 3765
Susanville 08:25:52 -63.7 Dark Down 43.7 274.1 Up 08:10:52 - 08:40:52 3720
Gimple 08:25:52 -63.9 Dark Down 43.9 274.3 Up 08:10:52 - 08:40:52 3686
Greenville 08:25:51 -63.9 Dark Down 44.0 274.2 Up 08:10:51 - 08:40:51 3684
Quincy 08:25:52 -64.2 Dark Down 43.9 274.4 Up 08:10:52 - 08:40:52 3663
Portola 08:25:49 -64.2 Dark Down 43.6 274.8 Up 08:10:49 - 08:40:49 3663
Reno 08:25:47 -64.5 Dark Down 43.0 275.4 Up 08:10:47 - 08:40:47 3653
Carson City 08:25:44 -64.8 Dark Down 43.0 275.8 Up 08:10:44 - 08:40:44 3617
Yerington 08:25:42 -64.9 Dark Down 42.5 276.3 Up 08:10:42 - 08:40:42 3614
Gardnerville 08:25:44 -65.1 Dark Down 42.9 276.0 Up 08:10:44 - 08:40:44 3593
Hawthorne 08:25:38 -65.3 Dark Down 42.0 277.0 Up 08:10:38 - 08:40:38 3581
Tonopah 08:25:32 -65.6 Dark Down 40.9 278.1 Up 08:10:32 - 08:40:32 3573
Lee Vining 08:25:39 -66.0 Dark Down 42.4 277.3 Up 08:10:39 - 08:40:39 3509
Bishop 08:25:34 -66.4 Dark Down 41.7 278.2 Up 08:10:34 - 08:40:34 3468
Beatty 08:25:27 -66.6 Dark Down 40.4 279.4 Up 08:10:27 - 08:40:27 3468
Indian Springs 08:25:21 -66.7 Dark Down 39.5 280.1 Up 08:10:21 - 08:40:21 3467
Henderson 08:25:18 -67.0 Dark Down 38.9 280.9 Up 08:10:18 - 08:40:18 3433
Patrick 08:25:12 -67.3 Dark Down 37.9 281.9 Up 08:10:12 - 08:40:12 3404
Lone Pine 08:25:31 -67.1 Dark Down 41.4 279.0 Up 08:10:31 - 08:40:31 3399
DCO 08:25:09 -67.3 Dark Down 37.2 282.4 Up 08:10:09 - 08:40:09 3396
Searchlight/Boulder City 08:25:17 -67.5 Dark Down 38.7 281.4 Up 08:10:17 - 08:40:17 3377
Kingman/Dolan Springs 08:25:12 -67.5 Dark Down 38.0 282.0 Up 08:10:12 - 08:40:12 3375
Laughlin/Bullhead City 08:25:14 -67.7 Dark Down 38.4 281.7 Up 08:10:14 - 08:40:14 3357
Mohave Valley 08:25:12 -68.0 Dark Down 38.3 282.0 Up 08:10:12 - 08:40:12 3329
Lake Havasu City 08:25:12 -68.3 Dark Down 38.0 282.4 Up 08:10:12 - 08:40:12 3296
Parker 08:25:10 -68.6 Dark Down 37.9 282.6 Up 08:10:10 - 08:40:10 3261
Blythe 08:25:10 -69.2 Dark Down 38.1 282.9 Up 08:10:10 - 08:40:10 3198
CPSLO 08:25:37 -68.7 Dark Down 43.2 278.9 Up 08:10:37 - 08:40:37 3192
Idyllwild 08:25:18 -69.7 Dark Down 39.8 282.0 Up 08:10:18 - 08:40:18 3144
Wildwood 08:25:26 -69.7 Dark Down 41.4 280.9 Up 08:10:26 - 08:40:26 3125
Calipatria 08:25:12 -69.9 Dark Down 38.7 282.9 Up 08:10:12 - 08:40:12 3118
Yuma 08:25:08 -70.0 Dark Down 37.9 283.6 Up 08:10:08 - 08:40:08 3101

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 02CW224, (2024/02/11 08:31UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 21.91 105
Alnath         05:26:17.5 +28:36:23  1.6  8.34 101
PPM 095117     05:56:33.8 +28:56:32  6.5  1.72 108
PPM 095383     06:06:06.5 +28:56:06  7.9  0.48 110
PPM 095336     06:04:23.5 +28:59:05  8.8  0.23 109
PPM 095347     06:04:59.6 +29:18:39 10.8  0.18 109
02CW224        06:04:19.0 +29:12:37 15.4       109
Positions are for J2000

Event circumstances last updated at 2019/06/08 06:32:35 UT

Marc W. Buie, Southwest Research Institute

RECON