메타데이터
| 항목 |
값 |
| Designation |
C/2002 O6 (SWAN) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-09-09T10:47:45.683520Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:18Z |
| Obs used |
215 |
| NEO |
- |
| M1 |
13.000 |
| K1 |
17.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2002-08-11.0000000 |
| e |
0.99857622 |
| q (au) |
0.494648 |
| a (au) |
347.419672 |
| i (deg) |
58.623930 |
| Ω (om, deg) |
330.951734 |
| ω (w, deg) |
78.749213 |
| M (ma, deg) |
359.995518 |
밝기
산란 + 전체 선형
$$
M_a = (12.479 + 5.037\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.479 |
| n |
5.037 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-06-01 00:00 |
11:11:26.39 |
-54:20:41.5 |
HIP 54659 |
12.76 |
| 2026-06-01 12:00 |
11:11:25.94 |
-54:20:07.9 |
HIP 54659 |
13.31 |
| 2026-06-02 00:00 |
11:11:25.53 |
-54:19:34.4 |
HIP 54659 |
13.87 |
| 2026-06-02 12:00 |
11:11:25.15 |
-54:19:00.9 |
HIP 54659 |
14.42 |
| 2026-06-03 00:00 |
11:11:24.81 |
-54:18:27.4 |
HIP 54659 |
14.98 |
| 2026-06-03 12:00 |
11:11:24.50 |
-54:17:54.0 |
HIP 54659 |
15.53 |
| 2026-06-04 00:00 |
11:11:24.22 |
-54:17:20.7 |
HIP 54659 |
16.09 |
| 2026-06-04 12:00 |
11:11:23.98 |
-54:16:47.4 |
HIP 54659 |
16.64 |
| 2026-06-05 00:00 |
11:11:23.78 |
-54:16:14.1 |
HIP 54659 |
17.19 |
| 2026-06-05 12:00 |
11:11:23.61 |
-54:15:41.0 |
HIP 54659 |
17.74 |
| 2026-06-06 00:00 |
11:11:23.47 |
-54:15:07.8 |
HIP 54659 |
18.30 |
| 2026-06-06 12:00 |
11:11:23.37 |
-54:14:34.8 |
HIP 54659 |
18.85 |
| 2026-06-07 00:00 |
11:11:23.31 |
-54:14:01.8 |
HIP 54659 |
19.40 |
| 2026-06-07 12:00 |
11:11:23.28 |
-54:13:28.9 |
HIP 54659 |
19.94 |
| 2026-06-08 00:00 |
11:11:23.28 |
-54:12:56.0 |
HIP 54659 |
20.49 |
| 2026-06-08 12:00 |
11:11:23.32 |
-54:12:23.3 |
HIP 54659 |
21.04 |
| 2026-06-09 00:00 |
11:11:23.39 |
-54:11:50.6 |
HIP 54659 |
21.58 |
| 2026-06-09 12:00 |
11:11:23.50 |
-54:11:17.9 |
HIP 54659 |
22.13 |
| 2026-06-10 00:00 |
11:11:23.64 |
-54:10:45.4 |
HIP 54659 |
22.67 |
| 2026-06-10 12:00 |
11:11:23.82 |
-54:10:12.9 |
HIP 54659 |
23.21 |
| 2026-06-11 00:00 |
11:11:24.03 |
-54:09:40.6 |
HIP 54659 |
23.75 |
| 2026-06-11 12:00 |
11:11:24.28 |
-54:09:08.3 |
HIP 54659 |
24.29 |
| 2026-06-12 00:00 |
11:11:24.56 |
-54:08:36.1 |
HIP 54659 |
24.83 |
| 2026-06-12 12:00 |
11:11:24.88 |
-54:08:04.0 |
HIP 54659 |
25.36 |
| 2026-06-13 00:00 |
11:11:25.23 |
-54:07:32.0 |
HIP 54659 |
25.90 |
| 2026-06-13 12:00 |
11:11:25.61 |
-54:07:00.0 |
HIP 54659 |
26.43 |
| 2026-06-14 00:00 |
11:11:26.03 |
-54:06:28.2 |
HIP 54659 |
26.96 |
| 2026-06-14 12:00 |
11:11:26.48 |
-54:05:56.5 |
HIP 54659 |
27.49 |
| 2026-06-15 00:00 |
11:11:26.97 |
-54:05:24.9 |
HIP 54659 |
28.02 |
| 2026-06-15 12:00 |
11:11:27.49 |
-54:04:53.4 |
HIP 54562 |
28.43 |
| 2026-06-16 00:00 |
11:11:28.05 |
-54:04:22.0 |
HIP 54562 |
28.02 |
| 2026-06-16 12:00 |
11:11:28.64 |
-54:03:50.8 |
HIP 54562 |
27.61 |
| 2026-06-17 00:00 |
11:11:29.26 |
-54:03:19.6 |
HIP 54562 |
27.21 |
| 2026-06-17 12:00 |
11:11:29.92 |
-54:02:48.6 |
HIP 54562 |
26.82 |
| 2026-06-18 00:00 |
11:11:30.61 |
-54:02:17.7 |
HIP 54562 |
26.44 |
| 2026-06-18 12:00 |
11:11:31.33 |
-54:01:46.9 |
HIP 54562 |
26.07 |
| 2026-06-19 00:00 |
11:11:32.09 |
-54:01:16.2 |
HIP 54562 |
25.71 |
| 2026-06-19 12:00 |
11:11:32.88 |
-54:00:45.6 |
HIP 54562 |
25.36 |
| 2026-06-20 00:00 |
11:11:33.71 |
-54:00:15.2 |
HIP 54562 |
25.02 |
| 2026-06-20 12:00 |
11:11:34.57 |
-53:59:44.9 |
HIP 54562 |
24.69 |
| 2026-06-21 00:00 |
11:11:35.46 |
-53:59:14.8 |
HIP 54562 |
24.38 |
| 2026-06-21 12:00 |
11:11:36.38 |
-53:58:44.8 |
HIP 54562 |
24.07 |
| 2026-06-22 00:00 |
11:11:37.34 |
-53:58:14.9 |
HIP 54562 |
23.78 |