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) |
| 2026-05-12 00:00 |
15:23:16.70 |
-49:31:13.5 |
HIP 75424 |
12.56 |
| 2026-05-12 12:00 |
15:23:10.90 |
-49:31:07.9 |
HIP 75424 |
13.51 |
| 2026-05-13 00:00 |
15:23:05.09 |
-49:31:02.1 |
HIP 75424 |
14.46 |
| 2026-05-13 12:00 |
15:22:59.28 |
-49:30:55.9 |
HIP 75424 |
15.40 |
| 2026-05-14 00:00 |
15:22:53.47 |
-49:30:49.6 |
HIP 75424 |
16.35 |
| 2026-05-14 12:00 |
15:22:47.67 |
-49:30:42.9 |
HIP 75424 |
17.30 |
| 2026-05-15 00:00 |
15:22:41.86 |
-49:30:36.0 |
HIP 75424 |
18.25 |
| 2026-05-15 12:00 |
15:22:36.05 |
-49:30:28.8 |
HIP 75336 |
19.19 |
| 2026-05-16 00:00 |
15:22:30.25 |
-49:30:21.3 |
HIP 75336 |
19.79 |
| 2026-05-16 12:00 |
15:22:24.45 |
-49:30:13.6 |
HIP 75336 |
20.42 |
| 2026-05-17 00:00 |
15:22:18.65 |
-49:30:05.6 |
HIP 75336 |
21.08 |
| 2026-05-17 12:00 |
15:22:12.86 |
-49:29:57.4 |
HIP 75336 |
21.77 |
| 2026-05-18 00:00 |
15:22:07.06 |
-49:29:48.9 |
HIP 75336 |
22.47 |
| 2026-05-18 12:00 |
15:22:01.28 |
-49:29:40.1 |
HIP 75313 |
23.12 |
| 2026-05-19 00:00 |
15:21:55.50 |
-49:29:31.1 |
HIP 75313 |
23.48 |
| 2026-05-19 12:00 |
15:21:49.72 |
-49:29:21.8 |
HIP 75002 |
23.85 |
| 2026-05-20 00:00 |
15:21:43.95 |
-49:29:12.3 |
HIP 75002 |
23.03 |
| 2026-05-20 12:00 |
15:21:38.18 |
-49:29:02.5 |
HIP 75002 |
22.22 |
| 2026-05-21 00:00 |
15:21:32.42 |
-49:28:52.4 |
HIP 75002 |
21.42 |
| 2026-05-21 12:00 |
15:21:26.67 |
-49:28:42.1 |
HIP 75002 |
20.64 |
| 2026-05-22 00:00 |
15:21:20.93 |
-49:28:31.5 |
HIP 75002 |
19.87 |
| 2026-05-22 12:00 |
15:21:15.20 |
-49:28:20.7 |
HIP 75002 |
19.13 |
| 2026-05-23 00:00 |
15:21:09.47 |
-49:28:09.7 |
HIP 75002 |
18.40 |
| 2026-05-23 12:00 |
15:21:03.75 |
-49:27:58.4 |
HIP 75002 |
17.70 |
| 2026-05-24 00:00 |
15:20:58.05 |
-49:27:46.9 |
HIP 75002 |
17.03 |
| 2026-05-24 12:00 |
15:20:52.35 |
-49:27:35.1 |
HIP 75002 |
16.39 |
| 2026-05-25 00:00 |
15:20:46.66 |
-49:27:23.1 |
HIP 75002 |
15.79 |
| 2026-05-25 12:00 |
15:20:40.99 |
-49:27:10.8 |
HIP 75002 |
15.22 |
| 2026-05-26 00:00 |
15:20:35.32 |
-49:26:58.3 |
HIP 75002 |
14.69 |
| 2026-05-26 12:00 |
15:20:29.67 |
-49:26:45.6 |
HIP 75002 |
14.21 |
| 2026-05-27 00:00 |
15:20:24.03 |
-49:26:32.6 |
HIP 75002 |
13.79 |
| 2026-05-27 12:00 |
15:20:18.40 |
-49:26:19.4 |
HIP 75002 |
13.42 |
| 2026-05-28 00:00 |
15:20:12.78 |
-49:26:05.9 |
HIP 75002 |
13.11 |
| 2026-05-28 12:00 |
15:20:07.18 |
-49:25:52.3 |
HIP 75002 |
12.87 |
| 2026-05-29 00:00 |
15:20:01.59 |
-49:25:38.4 |
HIP 75002 |
12.69 |
| 2026-05-29 12:00 |
15:19:56.02 |
-49:25:24.3 |
HIP 75002 |
12.59 |
| 2026-05-30 00:00 |
15:19:50.46 |
-49:25:09.9 |
HIP 75002 |
12.56 |
| 2026-05-30 12:00 |
15:19:44.92 |
-49:24:55.4 |
HIP 75002 |
12.61 |
| 2026-05-31 00:00 |
15:19:39.39 |
-49:24:40.6 |
HIP 75002 |
12.72 |
| 2026-05-31 12:00 |
15:19:33.87 |
-49:24:25.6 |
HIP 75002 |
12.91 |
| 2026-06-01 00:00 |
15:19:28.38 |
-49:24:10.3 |
HIP 75002 |
13.16 |
| 2026-06-01 12:00 |
15:19:22.90 |
-49:23:54.9 |
HIP 75002 |
13.48 |
| 2026-06-02 00:00 |
15:19:17.43 |
-49:23:39.2 |
HIP 75002 |
13.85 |