메타데이터
| 항목 |
값 |
| Designation |
P/2010 UH55 (Spacewatch) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2011-05-10T08:39:59.212800Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:46Z |
| Obs used |
164 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
18.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2011-04-26.0000000 |
| e |
0.57513428 |
| q (au) |
2.767968 |
| a (au) |
6.514923 |
| i (deg) |
8.662558 |
| Ω (om, deg) |
235.264395 |
| ω (w, deg) |
221.618059 |
| M (ma, deg) |
359.148807 |
밝기
산란 + 전체 선형
$$
M_a = (14.633 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.633 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.563 |
| k |
0.800 |
| δ90 |
10.000 |
| 파라미터 |
기호 |
범위 |
설명 |
| 태양·지구거리 1 AU에서의 절대등급 |
H0 |
-5 to 20 |
혜성의 고유 밝기 |
| 광도 기울기 파라미터 |
n |
2 to 6 |
태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 |
gf |
0.8 to 1 |
전방 산란의 강도 |
| 후방 산란 비대칭 계수 |
gb |
-1 to -0.5 |
후방 산란의 강도 |
| 분할 계수 |
k |
0.8 to 1 |
전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 |
δ90 |
1 to 10 |
코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
23:05:13.00 |
+01:05:50.4 |
HIP 114005 |
12.64 |
| 2026-03-26 12:00 |
23:05:34.47 |
+01:08:08.0 |
HIP 114005 |
11.13 |
| 2026-03-27 00:00 |
23:05:55.92 |
+01:10:25.7 |
HIP 114005 |
12.48 |
| 2026-03-27 12:00 |
23:06:17.35 |
+01:12:43.6 |
HIP 114005 |
15.98 |
| 2026-03-28 00:00 |
23:06:38.75 |
+01:15:01.6 |
HIP 114005 |
20.56 |
| 2026-03-28 12:00 |
23:07:00.14 |
+01:17:19.6 |
HIP 114005 |
25.65 |
| 2026-03-29 00:00 |
23:07:21.50 |
+01:19:37.8 |
HIP 114005 |
30.99 |
| 2026-03-29 12:00 |
23:07:42.84 |
+01:21:56.1 |
HIP 114005 |
36.47 |
| 2026-03-30 00:00 |
23:08:04.16 |
+01:24:14.4 |
HIP 114354 |
38.70 |
| 2026-03-30 12:00 |
23:08:25.45 |
+01:26:32.9 |
HIP 114354 |
33.84 |
| 2026-03-31 00:00 |
23:08:46.72 |
+01:28:51.5 |
HIP 114354 |
29.32 |
| 2026-03-31 12:00 |
23:09:07.97 |
+01:31:10.1 |
HIP 114354 |
25.33 |
| 2026-04-01 00:00 |
23:09:29.19 |
+01:33:28.8 |
HIP 114354 |
22.15 |
| 2026-04-01 12:00 |
23:09:50.38 |
+01:35:47.6 |
HIP 114354 |
20.15 |
| 2026-04-02 00:00 |
23:10:11.55 |
+01:38:06.5 |
HIP 114354 |
19.71 |
| 2026-04-02 12:00 |
23:10:32.69 |
+01:40:25.4 |
HIP 114354 |
20.91 |
| 2026-04-03 00:00 |
23:10:53.80 |
+01:42:44.4 |
HIP 114354 |
23.50 |
| 2026-04-03 12:00 |
23:11:14.88 |
+01:45:03.5 |
HIP 114558 |
22.31 |
| 2026-04-04 00:00 |
23:11:35.94 |
+01:47:22.6 |
HIP 114558 |
17.03 |
| 2026-04-04 12:00 |
23:11:56.97 |
+01:49:41.8 |
HIP 114558 |
12.20 |
| 2026-04-05 00:00 |
23:12:17.96 |
+01:52:01.0 |
HIP 114558 |
8.56 |
| 2026-04-05 12:00 |
23:12:38.93 |
+01:54:20.3 |
HIP 114558 |
7.98 |
| 2026-04-06 00:00 |
23:12:59.87 |
+01:56:39.6 |
HIP 114558 |
10.93 |
| 2026-04-06 12:00 |
23:13:20.78 |
+01:58:58.9 |
HIP 114665 |
14.16 |
| 2026-04-07 00:00 |
23:13:41.65 |
+02:01:18.3 |
HIP 114665 |
10.90 |
| 2026-04-07 12:00 |
23:14:02.49 |
+02:03:37.7 |
HIP 114665 |
10.12 |
| 2026-04-08 00:00 |
23:14:23.30 |
+02:05:57.2 |
HIP 114665 |
12.27 |
| 2026-04-08 12:00 |
23:14:44.08 |
+02:08:16.6 |
HIP 114665 |
16.23 |
| 2026-04-09 00:00 |
23:15:04.82 |
+02:10:36.1 |
HIP 114665 |
20.99 |
| 2026-04-09 12:00 |
23:15:25.53 |
+02:12:55.6 |
HIP 114823 |
25.55 |
| 2026-04-10 00:00 |
23:15:46.20 |
+02:15:15.1 |
HIP 114823 |
27.92 |
| 2026-04-10 12:00 |
23:16:06.84 |
+02:17:34.6 |
HIP 114823 |
31.15 |
| 2026-04-11 00:00 |
23:16:27.44 |
+02:19:54.2 |
HIP 114823 |
35.00 |
| 2026-04-11 12:00 |
23:16:48.01 |
+02:22:13.7 |
HIP 114823 |
39.28 |
| 2026-04-12 00:00 |
23:17:08.53 |
+02:24:33.1 |
HIP 114849 |
40.18 |
| 2026-04-12 12:00 |
23:17:29.02 |
+02:26:52.6 |
HIP 114849 |
41.08 |
| 2026-04-13 00:00 |
23:17:49.47 |
+02:29:12.1 |
HIP 114849 |
42.70 |
| 2026-04-13 12:00 |
23:18:09.88 |
+02:31:31.5 |
HIP 115273 |
40.32 |
| 2026-04-14 00:00 |
23:18:30.25 |
+02:33:50.9 |
HIP 115273 |
35.61 |
| 2026-04-14 12:00 |
23:18:50.58 |
+02:36:10.3 |
HIP 115273 |
31.20 |
| 2026-04-15 00:00 |
23:19:10.86 |
+02:38:29.6 |
HIP 115273 |
27.24 |
| 2026-04-15 12:00 |
23:19:31.11 |
+02:40:48.9 |
HIP 115273 |
23.94 |
| 2026-04-16 00:00 |
23:19:51.31 |
+02:43:08.2 |
HIP 115273 |
21.59 |