메타데이터
| 항목 |
값 |
| Designation |
C/2014 S1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2013-10-30T07:51:49.150080Z |
| Orbit solution date (soln_date, UTC) |
2022-06-20T23:12:31Z |
| Obs used |
45 |
| NEO |
- |
| M1 |
6.900 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-10-25.0000000 |
| e |
1.00078324 |
| q (au) |
8.137341 |
| a (au) |
-10389.297965 |
| i (deg) |
123.804132 |
| Ω (om, deg) |
352.660639 |
| ω (w, deg) |
288.827322 |
| M (ma, deg) |
0.000335 |
밝기
산란 + 전체 선형
$$
M_a = (10.564 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.564 |
| n |
2.000 |
| gf |
0.930 |
| gb |
-0.998 |
| k |
1.000 |
| δ90 |
9.552 |
| 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 |
| 2014-01-14 |
2015-12-09 |
-160.7524 |
+148.263 |
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 |
21:19:29.88 |
+19:09:50.8 |
HIP 105355 |
12.88 |
| 2026-07-29 12:00 |
21:19:24.39 |
+19:09:46.4 |
HIP 105355 |
14.15 |
| 2026-07-30 00:00 |
21:19:18.89 |
+19:09:41.6 |
HIP 105355 |
15.43 |
| 2026-07-30 12:00 |
21:19:13.39 |
+19:09:36.4 |
HIP 105355 |
16.72 |
| 2026-07-31 00:00 |
21:19:07.88 |
+19:09:30.9 |
HIP 105355 |
18.01 |
| 2026-07-31 12:00 |
21:19:02.36 |
+19:09:24.9 |
HIP 105355 |
19.30 |
| 2026-08-01 00:00 |
21:18:56.83 |
+19:09:18.6 |
HIP 105355 |
20.61 |
| 2026-08-01 12:00 |
21:18:51.30 |
+19:09:11.9 |
HIP 105103 |
20.36 |
| 2026-08-02 00:00 |
21:18:45.76 |
+19:09:04.9 |
HIP 105103 |
19.06 |
| 2026-08-02 12:00 |
21:18:40.22 |
+19:08:57.4 |
HIP 105103 |
17.75 |
| 2026-08-03 00:00 |
21:18:34.67 |
+19:08:49.6 |
HIP 105103 |
16.45 |
| 2026-08-03 12:00 |
21:18:29.12 |
+19:08:41.4 |
HIP 105103 |
15.15 |
| 2026-08-04 00:00 |
21:18:23.56 |
+19:08:32.9 |
HIP 105103 |
13.85 |
| 2026-08-04 12:00 |
21:18:17.99 |
+19:08:23.9 |
HIP 105103 |
12.56 |
| 2026-08-05 00:00 |
21:18:12.43 |
+19:08:14.6 |
HIP 105103 |
11.27 |
| 2026-08-05 12:00 |
21:18:06.86 |
+19:08:05.0 |
HIP 105103 |
9.99 |
| 2026-08-06 00:00 |
21:18:01.28 |
+19:07:54.9 |
HIP 105103 |
8.72 |
| 2026-08-06 12:00 |
21:17:55.70 |
+19:07:44.5 |
HIP 105103 |
7.48 |
| 2026-08-07 00:00 |
21:17:50.13 |
+19:07:33.7 |
HIP 105103 |
6.27 |
| 2026-08-07 12:00 |
21:17:44.54 |
+19:07:22.5 |
HIP 105103 |
5.13 |
| 2026-08-08 00:00 |
21:17:38.96 |
+19:07:11.0 |
HIP 105103 |
4.11 |
| 2026-08-08 12:00 |
21:17:33.38 |
+19:06:59.1 |
HIP 105103 |
3.32 |
| 2026-08-09 00:00 |
21:17:27.79 |
+19:06:46.9 |
HIP 105103 |
2.95 |
| 2026-08-09 12:00 |
21:17:22.21 |
+19:06:34.3 |
HIP 105103 |
3.17 |
| 2026-08-10 00:00 |
21:17:16.62 |
+19:06:21.3 |
HIP 105103 |
3.87 |
| 2026-08-10 12:00 |
21:17:11.04 |
+19:06:07.9 |
HIP 105103 |
4.85 |
| 2026-08-11 00:00 |
21:17:05.46 |
+19:05:54.2 |
HIP 105103 |
5.97 |
| 2026-08-11 12:00 |
21:16:59.88 |
+19:05:40.2 |
HIP 105103 |
7.17 |
| 2026-08-12 00:00 |
21:16:54.30 |
+19:05:25.7 |
HIP 105069 |
8.03 |
| 2026-08-12 12:00 |
21:16:48.72 |
+19:05:10.9 |
HIP 105069 |
8.31 |
| 2026-08-13 00:00 |
21:16:43.14 |
+19:04:55.8 |
HIP 105069 |
8.78 |
| 2026-08-13 12:00 |
21:16:37.57 |
+19:04:40.3 |
HIP 105069 |
9.41 |
| 2026-08-14 00:00 |
21:16:32.00 |
+19:04:24.5 |
HIP 105069 |
10.18 |
| 2026-08-14 12:00 |
21:16:26.44 |
+19:04:08.3 |
HIP 105069 |
11.05 |
| 2026-08-15 00:00 |
21:16:20.88 |
+19:03:51.8 |
HIP 105069 |
12.01 |
| 2026-08-15 12:00 |
21:16:15.32 |
+19:03:34.9 |
HIP 105069 |
13.03 |
| 2026-08-16 00:00 |
21:16:09.77 |
+19:03:17.7 |
HIP 105069 |
14.10 |
| 2026-08-16 12:00 |
21:16:04.23 |
+19:03:00.1 |
HIP 105069 |
15.21 |
| 2026-08-17 00:00 |
21:15:58.69 |
+19:02:42.2 |
HIP 105069 |
16.36 |
| 2026-08-17 12:00 |
21:15:53.15 |
+19:02:24.0 |
HIP 105069 |
17.53 |
| 2026-08-18 00:00 |
21:15:47.63 |
+19:02:05.4 |
HIP 105069 |
18.72 |
| 2026-08-18 12:00 |
21:15:42.11 |
+19:01:46.5 |
HIP 105069 |
19.92 |
| 2026-08-19 00:00 |
21:15:36.60 |
+19:01:27.2 |
HIP 105069 |
21.14 |