메타데이터
| 항목 |
값 |
| Designation |
C/2002 H2 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-03-23T09:48:55.414080Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:15Z |
| Obs used |
369 |
| NEO |
- |
| M1 |
13.000 |
| K1 |
5.250 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2002-05-22.0000000 |
| e |
0.99406539 |
| q (au) |
1.634840 |
| a (au) |
275.475363 |
| i (deg) |
110.501113 |
| Ω (om, deg) |
269.002033 |
| ω (w, deg) |
20.419619 |
| M (ma, deg) |
0.012846 |
밝기
산란 + 전체 선형
$$
M_a = (11.548 + 3.263\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.548 |
| n |
3.263 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
1.000 |
| δ90 |
1.000 |
| 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 |
05:51:07.90 |
+24:05:55.0 |
HIP 27652 |
10.54 |
| 2026-03-26 12:00 |
05:51:08.20 |
+24:05:53.0 |
HIP 27652 |
10.50 |
| 2026-03-27 00:00 |
05:51:08.52 |
+24:05:51.1 |
HIP 27652 |
10.45 |
| 2026-03-27 12:00 |
05:51:08.86 |
+24:05:49.2 |
HIP 27652 |
10.41 |
| 2026-03-28 00:00 |
05:51:09.23 |
+24:05:47.3 |
HIP 27652 |
10.36 |
| 2026-03-28 12:00 |
05:51:09.63 |
+24:05:45.4 |
HIP 27652 |
10.32 |
| 2026-03-29 00:00 |
05:51:10.05 |
+24:05:43.5 |
HIP 27652 |
10.27 |
| 2026-03-29 12:00 |
05:51:10.49 |
+24:05:41.6 |
HIP 27652 |
10.22 |
| 2026-03-30 00:00 |
05:51:10.96 |
+24:05:39.7 |
HIP 27652 |
10.18 |
| 2026-03-30 12:00 |
05:51:11.46 |
+24:05:37.8 |
HIP 27652 |
10.13 |
| 2026-03-31 00:00 |
05:51:11.97 |
+24:05:35.9 |
HIP 27652 |
10.08 |
| 2026-03-31 12:00 |
05:51:12.52 |
+24:05:34.1 |
HIP 27652 |
10.04 |
| 2026-04-01 00:00 |
05:51:13.08 |
+24:05:32.2 |
HIP 27652 |
10.00 |
| 2026-04-01 12:00 |
05:51:13.67 |
+24:05:30.4 |
HIP 27652 |
9.95 |
| 2026-04-02 00:00 |
05:51:14.28 |
+24:05:28.5 |
HIP 27652 |
9.91 |
| 2026-04-02 12:00 |
05:51:14.92 |
+24:05:26.7 |
HIP 27652 |
9.88 |
| 2026-04-03 00:00 |
05:51:15.58 |
+24:05:24.9 |
HIP 27652 |
9.84 |
| 2026-04-03 12:00 |
05:51:16.27 |
+24:05:23.0 |
HIP 27652 |
9.80 |
| 2026-04-04 00:00 |
05:51:16.98 |
+24:05:21.2 |
HIP 27652 |
9.77 |
| 2026-04-04 12:00 |
05:51:17.71 |
+24:05:19.4 |
HIP 27652 |
9.74 |
| 2026-04-05 00:00 |
05:51:18.46 |
+24:05:17.6 |
HIP 27652 |
9.72 |
| 2026-04-05 12:00 |
05:51:19.24 |
+24:05:15.8 |
HIP 27652 |
9.69 |
| 2026-04-06 00:00 |
05:51:20.04 |
+24:05:14.0 |
HIP 27652 |
9.68 |
| 2026-04-06 12:00 |
05:51:20.87 |
+24:05:12.2 |
HIP 27652 |
9.66 |
| 2026-04-07 00:00 |
05:51:21.72 |
+24:05:10.4 |
HIP 27652 |
9.65 |
| 2026-04-07 12:00 |
05:51:22.59 |
+24:05:08.7 |
HIP 27652 |
9.65 |
| 2026-04-08 00:00 |
05:51:23.48 |
+24:05:06.9 |
HIP 27652 |
9.65 |
| 2026-04-08 12:00 |
05:51:24.40 |
+24:05:05.1 |
HIP 27652 |
9.65 |
| 2026-04-09 00:00 |
05:51:25.34 |
+24:05:03.4 |
HIP 27652 |
9.66 |
| 2026-04-09 12:00 |
05:51:26.31 |
+24:05:01.7 |
HIP 27652 |
9.68 |
| 2026-04-10 00:00 |
05:51:27.29 |
+24:05:00.0 |
HIP 27652 |
9.70 |
| 2026-04-10 12:00 |
05:51:28.30 |
+24:04:58.2 |
HIP 27652 |
9.73 |
| 2026-04-11 00:00 |
05:51:29.33 |
+24:04:56.5 |
HIP 27652 |
9.77 |
| 2026-04-11 12:00 |
05:51:30.39 |
+24:04:54.7 |
HIP 27652 |
9.81 |
| 2026-04-12 00:00 |
05:51:31.46 |
+24:04:53.0 |
HIP 27652 |
9.87 |
| 2026-04-12 12:00 |
05:51:32.56 |
+24:04:51.3 |
HIP 27652 |
9.93 |
| 2026-04-13 00:00 |
05:51:33.68 |
+24:04:49.6 |
HIP 27652 |
9.99 |
| 2026-04-13 12:00 |
05:51:34.83 |
+24:04:47.9 |
HIP 27652 |
10.07 |
| 2026-04-14 00:00 |
05:51:35.99 |
+24:04:46.2 |
HIP 27652 |
10.15 |
| 2026-04-14 12:00 |
05:51:37.18 |
+24:04:44.6 |
HIP 27652 |
10.25 |
| 2026-04-15 00:00 |
05:51:38.39 |
+24:04:42.9 |
HIP 27652 |
10.35 |
| 2026-04-15 12:00 |
05:51:39.62 |
+24:04:41.2 |
HIP 27652 |
10.46 |
| 2026-04-16 00:00 |
05:51:40.87 |
+24:04:39.6 |
HIP 27652 |
10.58 |