메타데이터
| 항목 |
값 |
| Designation |
C/2017 E2 (Tsuchinshan) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2016-05-12T05:30:48.654720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:31Z |
| Obs used |
149 |
| NEO |
- |
| M1 |
14.500 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2017-03-22.0000000 |
| e |
0.89088950 |
| q (au) |
2.353028 |
| a (au) |
21.565554 |
| i (deg) |
79.169792 |
| Ω (om, deg) |
11.562100 |
| ω (w, deg) |
89.463163 |
| M (ma, deg) |
3.087983 |
밝기
산란 + 전체 선형
$$
M_a = (13.350 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.350 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.911 |
| k |
1.000 |
| 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 |
11:00:30.10 |
-65:07:02.8 |
HIP 53536 |
21.15 |
| 2026-03-26 12:00 |
11:00:17.22 |
-65:06:30.3 |
HIP 53536 |
19.84 |
| 2026-03-27 00:00 |
11:00:04.39 |
-65:05:57.0 |
HIP 53536 |
18.55 |
| 2026-03-27 12:00 |
10:59:51.61 |
-65:05:23.1 |
HIP 53536 |
17.30 |
| 2026-03-28 00:00 |
10:59:38.88 |
-65:04:48.4 |
HIP 53536 |
16.09 |
| 2026-03-28 12:00 |
10:59:26.21 |
-65:04:13.1 |
HIP 53536 |
14.93 |
| 2026-03-29 00:00 |
10:59:13.59 |
-65:03:37.0 |
HIP 53536 |
13.83 |
| 2026-03-29 12:00 |
10:59:01.03 |
-65:03:00.3 |
HIP 53536 |
12.82 |
| 2026-03-30 00:00 |
10:58:48.52 |
-65:02:22.9 |
HIP 53536 |
11.91 |
| 2026-03-30 12:00 |
10:58:36.08 |
-65:01:44.8 |
HIP 53536 |
11.13 |
| 2026-03-31 00:00 |
10:58:23.69 |
-65:01:06.0 |
HIP 53536 |
10.50 |
| 2026-03-31 12:00 |
10:58:11.36 |
-65:00:26.5 |
HIP 53536 |
10.06 |
| 2026-04-01 00:00 |
10:57:59.10 |
-64:59:46.4 |
HIP 53536 |
9.83 |
| 2026-04-01 12:00 |
10:57:46.89 |
-64:59:05.7 |
HIP 53536 |
9.83 |
| 2026-04-02 00:00 |
10:57:34.76 |
-64:58:24.3 |
HIP 53536 |
10.05 |
| 2026-04-02 12:00 |
10:57:22.68 |
-64:57:42.2 |
HIP 53536 |
10.48 |
| 2026-04-03 00:00 |
10:57:10.67 |
-64:56:59.5 |
HIP 53536 |
11.10 |
| 2026-04-03 12:00 |
10:56:58.73 |
-64:56:16.1 |
HIP 53536 |
11.87 |
| 2026-04-04 00:00 |
10:56:46.85 |
-64:55:32.1 |
HIP 53536 |
12.77 |
| 2026-04-04 12:00 |
10:56:35.04 |
-64:54:47.5 |
HIP 53536 |
13.77 |
| 2026-04-05 00:00 |
10:56:23.31 |
-64:54:02.3 |
HIP 53536 |
14.86 |
| 2026-04-05 12:00 |
10:56:11.64 |
-64:53:16.4 |
HIP 53536 |
16.01 |
| 2026-04-06 00:00 |
10:56:00.04 |
-64:52:29.9 |
HIP 53241 |
16.94 |
| 2026-04-06 12:00 |
10:55:48.52 |
-64:51:42.8 |
HIP 53241 |
15.58 |
| 2026-04-07 00:00 |
10:55:37.06 |
-64:50:55.1 |
HIP 53241 |
14.24 |
| 2026-04-07 12:00 |
10:55:25.69 |
-64:50:06.9 |
HIP 53241 |
12.92 |
| 2026-04-08 00:00 |
10:55:14.38 |
-64:49:18.0 |
HIP 53241 |
11.65 |
| 2026-04-08 12:00 |
10:55:03.16 |
-64:48:28.5 |
HIP 53241 |
10.43 |
| 2026-04-09 00:00 |
10:54:52.00 |
-64:47:38.4 |
HIP 53241 |
9.29 |
| 2026-04-09 12:00 |
10:54:40.93 |
-64:46:47.8 |
HIP 53241 |
8.25 |
| 2026-04-10 00:00 |
10:54:29.94 |
-64:45:56.6 |
HIP 53241 |
7.36 |
| 2026-04-10 12:00 |
10:54:19.02 |
-64:45:04.8 |
HIP 53241 |
6.68 |
| 2026-04-11 00:00 |
10:54:08.19 |
-64:44:12.4 |
HIP 53241 |
6.28 |
| 2026-04-11 12:00 |
10:53:57.43 |
-64:43:19.5 |
HIP 53241 |
6.21 |
| 2026-04-12 00:00 |
10:53:46.76 |
-64:42:26.1 |
HIP 53241 |
6.48 |
| 2026-04-12 12:00 |
10:53:36.17 |
-64:41:32.1 |
HIP 53241 |
7.06 |
| 2026-04-13 00:00 |
10:53:25.66 |
-64:40:37.6 |
HIP 53241 |
7.87 |
| 2026-04-13 12:00 |
10:53:15.24 |
-64:39:42.5 |
HIP 53241 |
8.85 |
| 2026-04-14 00:00 |
10:53:04.91 |
-64:38:46.9 |
HIP 53241 |
9.95 |
| 2026-04-14 12:00 |
10:52:54.66 |
-64:37:50.8 |
HIP 53241 |
11.13 |
| 2026-04-15 00:00 |
10:52:44.49 |
-64:36:54.2 |
HIP 53164 |
12.11 |
| 2026-04-15 12:00 |
10:52:34.42 |
-64:35:57.0 |
HIP 53164 |
11.11 |
| 2026-04-16 00:00 |
10:52:24.43 |
-64:34:59.4 |
HIP 53164 |
10.19 |