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) |
| 2026-07-29 00:00 |
18:57:58.33 |
-26:22:32.3 |
HIP 93303 |
32.94 |
| 2026-07-29 12:00 |
18:57:39.47 |
-26:22:54.9 |
HIP 92855 |
32.57 |
| 2026-07-30 00:00 |
18:57:20.74 |
-26:23:17.1 |
HIP 92855 |
28.50 |
| 2026-07-30 12:00 |
18:57:02.14 |
-26:23:38.7 |
HIP 92855 |
24.51 |
| 2026-07-31 00:00 |
18:56:43.67 |
-26:23:59.9 |
HIP 92855 |
20.61 |
| 2026-07-31 12:00 |
18:56:25.33 |
-26:24:20.5 |
HIP 92855 |
16.87 |
| 2026-08-01 00:00 |
18:56:07.13 |
-26:24:40.6 |
HIP 92855 |
13.38 |
| 2026-08-01 12:00 |
18:55:49.06 |
-26:25:00.2 |
HIP 92855 |
10.35 |
| 2026-08-02 00:00 |
18:55:31.13 |
-26:25:19.4 |
HIP 92855 |
8.26 |
| 2026-08-02 12:00 |
18:55:13.34 |
-26:25:38.0 |
HIP 92855 |
7.86 |
| 2026-08-03 00:00 |
18:54:55.69 |
-26:25:56.1 |
HIP 92855 |
9.32 |
| 2026-08-03 12:00 |
18:54:38.19 |
-26:26:13.7 |
HIP 92855 |
11.94 |
| 2026-08-04 00:00 |
18:54:20.83 |
-26:26:30.9 |
HIP 92855 |
15.11 |
| 2026-08-04 12:00 |
18:54:03.63 |
-26:26:47.5 |
HIP 92855 |
18.52 |
| 2026-08-05 00:00 |
18:53:46.58 |
-26:27:03.7 |
HIP 92635 |
21.21 |
| 2026-08-05 12:00 |
18:53:29.68 |
-26:27:19.4 |
HIP 92635 |
18.04 |
| 2026-08-06 00:00 |
18:53:12.93 |
-26:27:34.6 |
HIP 92635 |
15.20 |
| 2026-08-06 12:00 |
18:52:56.35 |
-26:27:49.3 |
HIP 92635 |
12.85 |
| 2026-08-07 00:00 |
18:52:39.92 |
-26:28:03.5 |
HIP 92635 |
11.28 |
| 2026-08-07 12:00 |
18:52:23.66 |
-26:28:17.3 |
HIP 92635 |
10.80 |
| 2026-08-08 00:00 |
18:52:07.56 |
-26:28:30.6 |
HIP 92635 |
11.50 |
| 2026-08-08 12:00 |
18:51:51.63 |
-26:28:43.4 |
HIP 92635 |
13.18 |
| 2026-08-09 00:00 |
18:51:35.87 |
-26:28:55.8 |
HIP 92635 |
15.48 |
| 2026-08-09 12:00 |
18:51:20.28 |
-26:29:07.7 |
HIP 92635 |
18.16 |
| 2026-08-10 00:00 |
18:51:04.86 |
-26:29:19.1 |
HIP 92463 |
17.98 |
| 2026-08-10 12:00 |
18:50:49.61 |
-26:29:30.1 |
HIP 92463 |
16.94 |
| 2026-08-11 00:00 |
18:50:34.54 |
-26:29:40.6 |
HIP 92463 |
16.56 |
| 2026-08-11 12:00 |
18:50:19.65 |
-26:29:50.6 |
HIP 92463 |
16.86 |
| 2026-08-12 00:00 |
18:50:04.94 |
-26:30:00.3 |
HIP 92463 |
17.78 |
| 2026-08-12 12:00 |
18:49:50.41 |
-26:30:09.4 |
HIP 92463 |
19.21 |
| 2026-08-13 00:00 |
18:49:36.06 |
-26:30:18.1 |
HIP 92463 |
21.03 |
| 2026-08-13 12:00 |
18:49:21.90 |
-26:30:26.4 |
HIP 92463 |
23.12 |
| 2026-08-14 00:00 |
18:49:07.93 |
-26:30:34.3 |
HIP 92463 |
25.41 |
| 2026-08-14 12:00 |
18:48:54.14 |
-26:30:41.7 |
HIP 92463 |
27.83 |
| 2026-08-15 00:00 |
18:48:40.55 |
-26:30:48.7 |
HIP 92166 |
26.49 |
| 2026-08-15 12:00 |
18:48:27.14 |
-26:30:55.2 |
HIP 92166 |
24.22 |
| 2026-08-16 00:00 |
18:48:13.93 |
-26:31:01.4 |
HIP 92166 |
22.14 |
| 2026-08-16 12:00 |
18:48:00.91 |
-26:31:07.1 |
HIP 92166 |
20.31 |
| 2026-08-17 00:00 |
18:47:48.09 |
-26:31:12.4 |
HIP 92166 |
18.77 |
| 2026-08-17 12:00 |
18:47:35.46 |
-26:31:17.3 |
HIP 92166 |
17.58 |
| 2026-08-18 00:00 |
18:47:23.03 |
-26:31:21.7 |
HIP 92166 |
16.78 |
| 2026-08-18 12:00 |
18:47:10.80 |
-26:31:25.8 |
HIP 92166 |
16.43 |
| 2026-08-19 00:00 |
18:46:58.77 |
-26:31:29.5 |
HIP 92166 |
16.52 |