메타데이터
| 항목 |
값 |
| Designation |
62P/Tsuchinshan 1 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2017-11-16T02:53:15.889920Z |
| Orbit solution date (soln_date, UTC) |
2025-03-14T14:47:38Z |
| Obs used |
3392 |
| NEO |
- |
| M1 |
13.300 |
| K1 |
14.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2017-10-28.0000000 |
| e |
0.59747574 |
| q (au) |
1.383805 |
| a (au) |
3.437817 |
| i (deg) |
9.707775 |
| Ω (om, deg) |
90.244520 |
| ω (w, deg) |
30.348693 |
| M (ma, deg) |
357.043519 |
밝기
산란 + 전체 선형
$$
M_a = (12.302 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.302 |
| n |
6.000 |
| gf |
0.998 |
| gb |
-0.666 |
| k |
0.993 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2023-08-29 |
2024-06-04 |
+4.3693 |
-2.091 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
18:41:27.21 |
-26:24:28.8 |
HIP 91684 |
8.36 |
| 2026-09-20 12:00 |
18:41:28.97 |
-26:24:14.2 |
HIP 91684 |
7.94 |
| 2026-09-21 00:00 |
18:41:30.93 |
-26:23:59.4 |
HIP 91684 |
7.49 |
| 2026-09-21 12:00 |
18:41:33.09 |
-26:23:44.4 |
HIP 91684 |
7.02 |
| 2026-09-22 00:00 |
18:41:35.46 |
-26:23:29.2 |
HIP 91684 |
6.53 |
| 2026-09-22 12:00 |
18:41:38.03 |
-26:23:13.8 |
HIP 91684 |
6.05 |
| 2026-09-23 00:00 |
18:41:40.81 |
-26:22:58.3 |
HIP 91684 |
5.57 |
| 2026-09-23 12:00 |
18:41:43.79 |
-26:22:42.5 |
HIP 91684 |
5.12 |
| 2026-09-24 00:00 |
18:41:46.97 |
-26:22:26.6 |
HIP 91684 |
4.73 |
| 2026-09-24 12:00 |
18:41:50.36 |
-26:22:10.5 |
HIP 91684 |
4.44 |
| 2026-09-25 00:00 |
18:41:53.94 |
-26:21:54.2 |
HIP 91684 |
4.29 |
| 2026-09-25 12:00 |
18:41:57.72 |
-26:21:37.7 |
HIP 91684 |
4.32 |
| 2026-09-26 00:00 |
18:42:01.70 |
-26:21:21.0 |
HIP 91684 |
4.56 |
| 2026-09-26 12:00 |
18:42:05.89 |
-26:21:04.2 |
HIP 91721 |
4.69 |
| 2026-09-27 00:00 |
18:42:10.26 |
-26:20:47.2 |
HIP 91721 |
4.11 |
| 2026-09-27 12:00 |
18:42:14.84 |
-26:20:30.0 |
HIP 91721 |
3.73 |
| 2026-09-28 00:00 |
18:42:19.61 |
-26:20:12.6 |
HIP 91721 |
3.64 |
| 2026-09-28 12:00 |
18:42:24.57 |
-26:19:55.1 |
HIP 91721 |
3.90 |
| 2026-09-29 00:00 |
18:42:29.73 |
-26:19:37.3 |
HIP 91721 |
4.48 |
| 2026-09-29 12:00 |
18:42:35.08 |
-26:19:19.4 |
HIP 91721 |
5.31 |
| 2026-09-30 00:00 |
18:42:40.63 |
-26:19:01.4 |
HIP 91721 |
6.32 |
| 2026-09-30 12:00 |
18:42:46.37 |
-26:18:43.1 |
HIP 91721 |
7.45 |
| 2026-10-01 00:00 |
18:42:52.30 |
-26:18:24.7 |
HIP 91721 |
8.67 |
| 2026-10-01 12:00 |
18:42:58.41 |
-26:18:06.1 |
HIP 91721 |
9.98 |
| 2026-10-02 00:00 |
18:43:04.72 |
-26:17:47.4 |
HIP 91721 |
11.35 |
| 2026-10-02 12:00 |
18:43:11.22 |
-26:17:28.5 |
HIP 91721 |
12.78 |
| 2026-10-03 00:00 |
18:43:17.91 |
-26:17:09.4 |
HIP 91721 |
14.26 |
| 2026-10-03 12:00 |
18:43:24.79 |
-26:16:50.1 |
HIP 91721 |
15.80 |
| 2026-10-04 00:00 |
18:43:31.85 |
-26:16:30.7 |
HIP 91721 |
17.39 |
| 2026-10-04 12:00 |
18:43:39.10 |
-26:16:11.0 |
HIP 91721 |
19.02 |
| 2026-10-05 00:00 |
18:43:46.53 |
-26:15:51.3 |
HIP 91721 |
20.70 |
| 2026-10-05 12:00 |
18:43:54.15 |
-26:15:31.3 |
HIP 91721 |
22.42 |
| 2026-10-06 00:00 |
18:44:01.96 |
-26:15:11.2 |
HIP 91721 |
24.19 |
| 2026-10-06 12:00 |
18:44:09.95 |
-26:14:50.9 |
HIP 91721 |
26.00 |
| 2026-10-07 00:00 |
18:44:18.12 |
-26:14:30.4 |
HIP 91967 |
27.31 |
| 2026-10-07 12:00 |
18:44:26.47 |
-26:14:09.8 |
HIP 91967 |
26.63 |
| 2026-10-08 00:00 |
18:44:35.00 |
-26:13:49.0 |
HIP 91967 |
26.06 |
| 2026-10-08 12:00 |
18:44:43.72 |
-26:13:28.0 |
HIP 91967 |
25.62 |
| 2026-10-09 00:00 |
18:44:52.61 |
-26:13:06.8 |
HIP 91967 |
25.34 |
| 2026-10-09 12:00 |
18:45:01.68 |
-26:12:45.5 |
HIP 91967 |
25.21 |
| 2026-10-10 00:00 |
18:45:10.93 |
-26:12:24.0 |
HIP 91967 |
25.27 |
| 2026-10-10 12:00 |
18:45:20.35 |
-26:12:02.3 |
HIP 92166 |
23.77 |
| 2026-10-11 00:00 |
18:45:29.96 |
-26:11:40.5 |
HIP 92166 |
21.69 |