메타데이터
| 항목 |
값 |
| Designation |
60P/Tsuchinshan 2 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2018-12-11T05:33:44.340480Z |
| Orbit solution date (soln_date, UTC) |
2025-02-28T14:18:31Z |
| Obs used |
1247 |
| NEO |
- |
| M1 |
9.600 |
| K1 |
23.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2018-10-02.0000000 |
| e |
0.53777177 |
| q (au) |
1.622648 |
| a (au) |
3.510492 |
| i (deg) |
3.606471 |
| Ω (om, deg) |
267.581419 |
| ω (w, deg) |
216.554593 |
| M (ma, deg) |
349.475881 |
밝기
산란 + 전체 선형
$$
M_a = (19.813 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
19.813 |
| n |
2.000 |
| gf |
0.997 |
| 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 |
15:45:56.44 |
-23:23:36.4 |
HIP 77177 |
9.34 |
| 2026-03-26 12:00 |
15:45:49.14 |
-23:23:21.9 |
HIP 77177 |
8.52 |
| 2026-03-27 00:00 |
15:45:41.41 |
-23:23:05.8 |
HIP 77177 |
7.97 |
| 2026-03-27 12:00 |
15:45:33.25 |
-23:22:48.0 |
HIP 77177 |
7.82 |
| 2026-03-28 00:00 |
15:45:24.67 |
-23:22:28.7 |
HIP 77177 |
8.15 |
| 2026-03-28 12:00 |
15:45:15.67 |
-23:22:07.8 |
HIP 77177 |
8.99 |
| 2026-03-29 00:00 |
15:45:06.24 |
-23:21:45.3 |
HIP 77177 |
10.27 |
| 2026-03-29 12:00 |
15:44:56.39 |
-23:21:21.1 |
HIP 77177 |
11.90 |
| 2026-03-30 00:00 |
15:44:46.13 |
-23:20:55.3 |
HIP 77177 |
13.82 |
| 2026-03-30 12:00 |
15:44:35.44 |
-23:20:27.9 |
HIP 77123 |
15.53 |
| 2026-03-31 00:00 |
15:44:24.35 |
-23:19:58.9 |
HIP 77123 |
15.93 |
| 2026-03-31 12:00 |
15:44:12.84 |
-23:19:28.3 |
HIP 77123 |
16.75 |
| 2026-04-01 00:00 |
15:44:00.93 |
-23:18:56.0 |
HIP 77123 |
17.98 |
| 2026-04-01 12:00 |
15:43:48.60 |
-23:18:22.1 |
HIP 77123 |
19.59 |
| 2026-04-02 00:00 |
15:43:35.88 |
-23:17:46.6 |
HIP 77123 |
21.53 |
| 2026-04-02 12:00 |
15:43:22.75 |
-23:17:09.4 |
HIP 76874 |
20.58 |
| 2026-04-03 00:00 |
15:43:09.22 |
-23:16:30.5 |
HIP 76874 |
17.46 |
| 2026-04-03 12:00 |
15:42:55.30 |
-23:15:50.1 |
HIP 76874 |
14.27 |
| 2026-04-04 00:00 |
15:42:40.98 |
-23:15:07.9 |
HIP 76874 |
11.04 |
| 2026-04-04 12:00 |
15:42:26.27 |
-23:14:24.2 |
HIP 76874 |
7.83 |
| 2026-04-05 00:00 |
15:42:11.18 |
-23:13:38.7 |
HIP 76874 |
4.92 |
| 2026-04-05 12:00 |
15:41:55.70 |
-23:12:51.6 |
HIP 76874 |
3.51 |
| 2026-04-06 00:00 |
15:41:39.83 |
-23:12:02.9 |
HIP 76874 |
5.26 |
| 2026-04-06 12:00 |
15:41:23.59 |
-23:11:12.5 |
HIP 76874 |
8.51 |
| 2026-04-07 00:00 |
15:41:06.98 |
-23:10:20.4 |
HIP 76874 |
12.19 |
| 2026-04-07 12:00 |
15:40:50.00 |
-23:09:26.7 |
HIP 76874 |
16.07 |
| 2026-04-08 00:00 |
15:40:32.64 |
-23:08:31.3 |
HIP 76666 |
16.39 |
| 2026-04-08 12:00 |
15:40:14.93 |
-23:07:34.3 |
HIP 76666 |
12.39 |
| 2026-04-09 00:00 |
15:39:56.86 |
-23:06:35.6 |
HIP 76666 |
8.50 |
| 2026-04-09 12:00 |
15:39:38.43 |
-23:05:35.3 |
HIP 76666 |
5.20 |
| 2026-04-10 00:00 |
15:39:19.65 |
-23:04:33.3 |
HIP 76666 |
4.47 |
| 2026-04-10 12:00 |
15:39:00.52 |
-23:03:29.6 |
HIP 76614 |
3.70 |
| 2026-04-11 00:00 |
15:38:41.05 |
-23:02:24.3 |
HIP 76614 |
0.99 |
| 2026-04-11 12:00 |
15:38:21.25 |
-23:01:17.4 |
HIP 76614 |
5.63 |
| 2026-04-12 00:00 |
15:38:01.11 |
-23:00:08.8 |
HIP 76532 |
8.87 |
| 2026-04-12 12:00 |
15:37:40.64 |
-22:58:58.5 |
HIP 76532 |
9.67 |
| 2026-04-13 00:00 |
15:37:19.85 |
-22:57:46.7 |
HIP 76532 |
12.52 |
| 2026-04-13 12:00 |
15:36:58.75 |
-22:56:33.2 |
HIP 76532 |
16.47 |
| 2026-04-14 00:00 |
15:36:37.33 |
-22:55:18.1 |
HIP 76532 |
20.95 |
| 2026-04-14 12:00 |
15:36:15.60 |
-22:54:01.4 |
HIP 76268 |
22.93 |
| 2026-04-15 00:00 |
15:35:53.58 |
-22:52:43.0 |
HIP 76268 |
17.72 |
| 2026-04-15 12:00 |
15:35:31.26 |
-22:51:23.1 |
HIP 76268 |
12.46 |
| 2026-04-16 00:00 |
15:35:08.65 |
-22:50:01.6 |
HIP 76268 |
7.21 |