메타데이터
| 항목 |
값 |
| Designation |
C/2002 Q2 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-08-17T18:46:31.782720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:19Z |
| Obs used |
166 |
| NEO |
- |
| M1 |
16.400 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2002-09-04.0000000 |
| e |
0.97789208 |
| q (au) |
1.303022 |
| a (au) |
58.939134 |
| i (deg) |
96.765213 |
| Ω (om, deg) |
154.285005 |
| ω (w, deg) |
125.472100 |
| M (ma, deg) |
0.037504 |
밝기
산란 + 전체 선형
$$
M_a = (16.983 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.983 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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 |
08:29:35.95 |
-58:20:24.7 |
HIP 41575 |
7.93 |
| 2026-03-26 12:00 |
08:29:33.33 |
-58:19:45.4 |
HIP 41575 |
7.78 |
| 2026-03-27 00:00 |
08:29:30.76 |
-58:19:06.0 |
HIP 41575 |
7.70 |
| 2026-03-27 12:00 |
08:29:28.23 |
-58:18:26.4 |
HIP 41575 |
7.70 |
| 2026-03-28 00:00 |
08:29:25.74 |
-58:17:46.6 |
HIP 41575 |
7.77 |
| 2026-03-28 12:00 |
08:29:23.29 |
-58:17:06.8 |
HIP 41575 |
7.92 |
| 2026-03-29 00:00 |
08:29:20.89 |
-58:16:26.7 |
HIP 41575 |
8.13 |
| 2026-03-29 12:00 |
08:29:18.53 |
-58:15:46.5 |
HIP 41575 |
8.42 |
| 2026-03-30 00:00 |
08:29:16.21 |
-58:15:06.2 |
HIP 41575 |
8.76 |
| 2026-03-30 12:00 |
08:29:13.94 |
-58:14:25.8 |
HIP 41575 |
9.15 |
| 2026-03-31 00:00 |
08:29:11.71 |
-58:13:45.2 |
HIP 41575 |
9.59 |
| 2026-03-31 12:00 |
08:29:09.52 |
-58:13:04.4 |
HIP 41575 |
10.07 |
| 2026-04-01 00:00 |
08:29:07.37 |
-58:12:23.6 |
HIP 41575 |
10.58 |
| 2026-04-01 12:00 |
08:29:05.27 |
-58:11:42.6 |
HIP 41575 |
11.12 |
| 2026-04-02 00:00 |
08:29:03.21 |
-58:11:01.5 |
HIP 41575 |
11.68 |
| 2026-04-02 12:00 |
08:29:01.20 |
-58:10:20.2 |
HIP 41575 |
12.27 |
| 2026-04-03 00:00 |
08:28:59.23 |
-58:09:38.9 |
HIP 41575 |
12.88 |
| 2026-04-03 12:00 |
08:28:57.30 |
-58:08:57.4 |
HIP 41575 |
13.50 |
| 2026-04-04 00:00 |
08:28:55.42 |
-58:08:15.8 |
HIP 41575 |
14.13 |
| 2026-04-04 12:00 |
08:28:53.58 |
-58:07:34.2 |
HIP 41575 |
14.78 |
| 2026-04-05 00:00 |
08:28:51.78 |
-58:06:52.4 |
HIP 41575 |
15.44 |
| 2026-04-05 12:00 |
08:28:50.03 |
-58:06:10.5 |
HIP 41575 |
16.11 |
| 2026-04-06 00:00 |
08:28:48.32 |
-58:05:28.5 |
HIP 41575 |
16.78 |
| 2026-04-06 12:00 |
08:28:46.66 |
-58:04:46.4 |
HIP 41575 |
17.46 |
| 2026-04-07 00:00 |
08:28:45.04 |
-58:04:04.2 |
HIP 41575 |
18.15 |
| 2026-04-07 12:00 |
08:28:43.47 |
-58:03:21.9 |
HIP 41575 |
18.84 |
| 2026-04-08 00:00 |
08:28:41.94 |
-58:02:39.6 |
HIP 41575 |
19.54 |
| 2026-04-08 12:00 |
08:28:40.45 |
-58:01:57.1 |
HIP 41575 |
20.24 |
| 2026-04-09 00:00 |
08:28:39.01 |
-58:01:14.6 |
HIP 41353 |
20.64 |
| 2026-04-09 12:00 |
08:28:37.61 |
-58:00:32.0 |
HIP 41353 |
20.23 |
| 2026-04-10 00:00 |
08:28:36.26 |
-57:59:49.3 |
HIP 41353 |
19.86 |
| 2026-04-10 12:00 |
08:28:34.96 |
-57:59:06.6 |
HIP 41353 |
19.50 |
| 2026-04-11 00:00 |
08:28:33.69 |
-57:58:23.8 |
HIP 41353 |
19.18 |
| 2026-04-11 12:00 |
08:28:32.48 |
-57:57:40.9 |
HIP 41353 |
18.88 |
| 2026-04-12 00:00 |
08:28:31.31 |
-57:56:57.9 |
HIP 41353 |
18.61 |
| 2026-04-12 12:00 |
08:28:30.18 |
-57:56:14.9 |
HIP 41353 |
18.37 |
| 2026-04-13 00:00 |
08:28:29.10 |
-57:55:31.9 |
HIP 41353 |
18.17 |
| 2026-04-13 12:00 |
08:28:28.06 |
-57:54:48.8 |
HIP 41353 |
18.00 |
| 2026-04-14 00:00 |
08:28:27.07 |
-57:54:05.6 |
HIP 41353 |
17.86 |
| 2026-04-14 12:00 |
08:28:26.13 |
-57:53:22.4 |
HIP 41353 |
17.76 |
| 2026-04-15 00:00 |
08:28:25.23 |
-57:52:39.1 |
HIP 41353 |
17.69 |
| 2026-04-15 12:00 |
08:28:24.37 |
-57:51:55.9 |
HIP 41353 |
17.66 |
| 2026-04-16 00:00 |
08:28:23.56 |
-57:51:12.5 |
HIP 41353 |
17.67 |