메타데이터
| 항목 |
값 |
| Designation |
C/2007 VO53 (Spacewatch) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-04-26T10:19:11.421120Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:13Z |
| Obs used |
701 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2009-08-27.0000000 |
| e |
0.99960499 |
| q (au) |
4.842735 |
| a (au) |
12259.836506 |
| i (deg) |
86.994806 |
| Ω (om, deg) |
59.744414 |
| ω (w, deg) |
75.019866 |
| M (ma, deg) |
359.999824 |
밝기
산란 + 전체 선형
$$
M_a = (1.756 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
1.756 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| k |
1.000 |
| 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 |
15:31:13.52 |
-49:19:06.6 |
HIP 75878 |
12.73 |
| 2026-03-26 12:00 |
15:31:09.77 |
-49:19:26.8 |
HIP 75878 |
12.09 |
| 2026-03-27 00:00 |
15:31:05.98 |
-49:19:46.9 |
HIP 75878 |
11.45 |
| 2026-03-27 12:00 |
15:31:02.15 |
-49:20:06.6 |
HIP 75878 |
10.81 |
| 2026-03-28 00:00 |
15:30:58.28 |
-49:20:26.2 |
HIP 75878 |
10.18 |
| 2026-03-28 12:00 |
15:30:54.37 |
-49:20:45.4 |
HIP 75878 |
9.55 |
| 2026-03-29 00:00 |
15:30:50.42 |
-49:21:04.5 |
HIP 75878 |
8.93 |
| 2026-03-29 12:00 |
15:30:46.44 |
-49:21:23.3 |
HIP 75878 |
8.31 |
| 2026-03-30 00:00 |
15:30:42.42 |
-49:21:41.8 |
HIP 75878 |
7.71 |
| 2026-03-30 12:00 |
15:30:38.36 |
-49:22:00.1 |
HIP 75878 |
7.12 |
| 2026-03-31 00:00 |
15:30:34.27 |
-49:22:18.1 |
HIP 75878 |
6.55 |
| 2026-03-31 12:00 |
15:30:30.14 |
-49:22:35.9 |
HIP 75878 |
6.01 |
| 2026-04-01 00:00 |
15:30:25.97 |
-49:22:53.4 |
HIP 75878 |
5.51 |
| 2026-04-01 12:00 |
15:30:21.77 |
-49:23:10.7 |
HIP 75878 |
5.06 |
| 2026-04-02 00:00 |
15:30:17.53 |
-49:23:27.7 |
HIP 75878 |
4.68 |
| 2026-04-02 12:00 |
15:30:13.25 |
-49:23:44.5 |
HIP 75878 |
4.39 |
| 2026-04-03 00:00 |
15:30:08.94 |
-49:24:01.0 |
HIP 75878 |
4.21 |
| 2026-04-03 12:00 |
15:30:04.60 |
-49:24:17.2 |
HIP 75878 |
4.15 |
| 2026-04-04 00:00 |
15:30:00.22 |
-49:24:33.2 |
HIP 75878 |
4.22 |
| 2026-04-04 12:00 |
15:29:55.81 |
-49:24:48.9 |
HIP 75878 |
4.42 |
| 2026-04-05 00:00 |
15:29:51.37 |
-49:25:04.4 |
HIP 75878 |
4.73 |
| 2026-04-05 12:00 |
15:29:46.89 |
-49:25:19.6 |
HIP 75878 |
5.14 |
| 2026-04-06 00:00 |
15:29:42.37 |
-49:25:34.5 |
HIP 75878 |
5.62 |
| 2026-04-06 12:00 |
15:29:37.83 |
-49:25:49.2 |
HIP 75878 |
6.16 |
| 2026-04-07 00:00 |
15:29:33.25 |
-49:26:03.6 |
HIP 75878 |
6.75 |
| 2026-04-07 12:00 |
15:29:28.64 |
-49:26:17.7 |
HIP 75878 |
7.37 |
| 2026-04-08 00:00 |
15:29:24.00 |
-49:26:31.5 |
HIP 75878 |
8.02 |
| 2026-04-08 12:00 |
15:29:19.33 |
-49:26:45.1 |
HIP 75878 |
8.69 |
| 2026-04-09 00:00 |
15:29:14.63 |
-49:26:58.4 |
HIP 75878 |
9.39 |
| 2026-04-09 12:00 |
15:29:09.90 |
-49:27:11.5 |
HIP 75878 |
10.09 |
| 2026-04-10 00:00 |
15:29:05.13 |
-49:27:24.2 |
HIP 75878 |
10.82 |
| 2026-04-10 12:00 |
15:29:00.34 |
-49:27:36.7 |
HIP 75878 |
11.55 |
| 2026-04-11 00:00 |
15:28:55.52 |
-49:27:49.0 |
HIP 75878 |
12.29 |
| 2026-04-11 12:00 |
15:28:50.66 |
-49:28:00.9 |
HIP 75878 |
13.05 |
| 2026-04-12 00:00 |
15:28:45.78 |
-49:28:12.6 |
HIP 75849 |
13.76 |
| 2026-04-12 12:00 |
15:28:40.87 |
-49:28:24.0 |
HIP 75638 |
14.22 |
| 2026-04-13 00:00 |
15:28:35.94 |
-49:28:35.1 |
HIP 75638 |
13.44 |
| 2026-04-13 12:00 |
15:28:30.97 |
-49:28:45.9 |
HIP 75638 |
12.65 |
| 2026-04-14 00:00 |
15:28:25.98 |
-49:28:56.5 |
HIP 75638 |
11.87 |
| 2026-04-14 12:00 |
15:28:20.96 |
-49:29:06.7 |
HIP 75638 |
11.09 |
| 2026-04-15 00:00 |
15:28:15.92 |
-49:29:16.7 |
HIP 75638 |
10.32 |
| 2026-04-15 12:00 |
15:28:10.84 |
-49:29:26.4 |
HIP 75638 |
9.54 |
| 2026-04-16 00:00 |
15:28:05.75 |
-49:29:35.9 |
HIP 75638 |
8.78 |