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 |
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) |
| 2026-09-20 00:00 |
15:34:20.34 |
-20:14:07.4 |
HIP 76393 |
28.18 |
| 2026-09-20 12:00 |
15:34:50.99 |
-20:15:35.1 |
HIP 76393 |
21.14 |
| 2026-09-21 00:00 |
15:35:21.74 |
-20:17:02.8 |
HIP 76393 |
14.38 |
| 2026-09-21 12:00 |
15:35:52.57 |
-20:18:30.6 |
HIP 76393 |
8.65 |
| 2026-09-22 00:00 |
15:36:23.50 |
-20:19:58.4 |
HIP 76453 |
6.44 |
| 2026-09-22 12:00 |
15:36:54.52 |
-20:21:26.2 |
HIP 76453 |
1.06 |
| 2026-09-23 00:00 |
15:37:25.63 |
-20:22:54.0 |
HIP 76453 |
8.44 |
| 2026-09-23 12:00 |
15:37:56.82 |
-20:24:21.9 |
HIP 76576 |
6.15 |
| 2026-09-24 00:00 |
15:38:28.10 |
-20:25:49.8 |
HIP 76576 |
5.39 |
| 2026-09-24 12:00 |
15:38:59.47 |
-20:27:17.7 |
HIP 76631 |
7.70 |
| 2026-09-25 00:00 |
15:39:30.93 |
-20:28:45.6 |
HIP 76631 |
9.60 |
| 2026-09-25 12:00 |
15:40:02.47 |
-20:30:13.5 |
HIP 76631 |
15.44 |
| 2026-09-26 00:00 |
15:40:34.09 |
-20:31:41.3 |
HIP 76900 |
22.04 |
| 2026-09-26 12:00 |
15:41:05.80 |
-20:33:09.2 |
HIP 76900 |
14.48 |
| 2026-09-27 00:00 |
15:41:37.59 |
-20:34:37.0 |
HIP 76900 |
6.90 |
| 2026-09-27 12:00 |
15:42:09.47 |
-20:36:04.8 |
HIP 76900 |
0.93 |
| 2026-09-28 00:00 |
15:42:41.42 |
-20:37:32.6 |
HIP 76900 |
8.36 |
| 2026-09-28 12:00 |
15:43:13.46 |
-20:39:00.3 |
HIP 76900 |
15.99 |
| 2026-09-29 00:00 |
15:43:45.57 |
-20:40:28.0 |
HIP 76900 |
23.64 |
| 2026-09-29 12:00 |
15:44:17.77 |
-20:41:55.6 |
HIP 77000 |
28.72 |
| 2026-09-30 00:00 |
15:44:50.04 |
-20:43:23.1 |
HIP 77000 |
31.85 |
| 2026-09-30 12:00 |
15:45:22.39 |
-20:44:50.6 |
HIP 77338 |
32.25 |
| 2026-10-01 00:00 |
15:45:54.82 |
-20:46:18.0 |
HIP 77338 |
27.01 |
| 2026-10-01 12:00 |
15:46:27.33 |
-20:47:45.3 |
HIP 77338 |
23.20 |
| 2026-10-02 00:00 |
15:46:59.91 |
-20:49:12.6 |
HIP 77338 |
21.60 |
| 2026-10-02 12:00 |
15:47:32.57 |
-20:50:39.8 |
HIP 77338 |
22.70 |
| 2026-10-03 00:00 |
15:48:05.30 |
-20:52:06.8 |
HIP 77521 |
22.85 |
| 2026-10-03 12:00 |
15:48:38.11 |
-20:53:33.8 |
HIP 77521 |
16.08 |
| 2026-10-04 00:00 |
15:49:10.99 |
-20:55:00.7 |
HIP 77521 |
10.80 |
| 2026-10-04 12:00 |
15:49:43.95 |
-20:56:27.4 |
HIP 77521 |
9.85 |
| 2026-10-05 00:00 |
15:50:16.98 |
-20:57:54.1 |
HIP 77521 |
14.15 |
| 2026-10-05 12:00 |
15:50:50.08 |
-20:59:20.6 |
HIP 77601 |
16.71 |
| 2026-10-06 00:00 |
15:51:23.25 |
-21:00:47.0 |
HIP 77601 |
21.15 |
| 2026-10-06 12:00 |
15:51:56.49 |
-21:02:13.2 |
HIP 77601 |
27.21 |
| 2026-10-07 00:00 |
15:52:29.81 |
-21:03:39.3 |
HIP 77677 |
31.68 |
| 2026-10-07 12:00 |
15:53:03.19 |
-21:05:05.3 |
HIP 77948 |
33.21 |
| 2026-10-08 00:00 |
15:53:36.64 |
-21:06:31.1 |
HIP 77948 |
27.85 |
| 2026-10-08 12:00 |
15:54:10.16 |
-21:07:56.8 |
HIP 77948 |
23.96 |
| 2026-10-09 00:00 |
15:54:43.74 |
-21:09:22.3 |
HIP 77948 |
22.33 |
| 2026-10-09 12:00 |
15:55:17.39 |
-21:10:47.6 |
HIP 77948 |
23.46 |
| 2026-10-10 00:00 |
15:55:51.11 |
-21:12:12.8 |
HIP 78129 |
25.44 |
| 2026-10-10 12:00 |
15:56:24.89 |
-21:13:37.8 |
HIP 78129 |
19.09 |
| 2026-10-11 00:00 |
15:56:58.73 |
-21:15:02.6 |
HIP 78129 |
14.47 |