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) |
| 2026-06-01 00:00 |
21:27:41.21 |
+18:36:43.9 |
HIP 106152 |
34.57 |
| 2026-06-01 12:00 |
21:27:38.79 |
+18:37:19.6 |
HIP 106152 |
35.18 |
| 2026-06-02 00:00 |
21:27:36.34 |
+18:37:55.1 |
HIP 106152 |
35.81 |
| 2026-06-02 12:00 |
21:27:33.85 |
+18:38:30.3 |
HIP 105848 |
35.64 |
| 2026-06-03 00:00 |
21:27:31.32 |
+18:39:05.3 |
HIP 105848 |
34.84 |
| 2026-06-03 12:00 |
21:27:28.76 |
+18:39:40.0 |
HIP 105848 |
34.04 |
| 2026-06-04 00:00 |
21:27:26.15 |
+18:40:14.4 |
HIP 105848 |
33.24 |
| 2026-06-04 12:00 |
21:27:23.51 |
+18:40:48.6 |
HIP 105848 |
32.44 |
| 2026-06-05 00:00 |
21:27:20.83 |
+18:41:22.5 |
HIP 105848 |
31.64 |
| 2026-06-05 12:00 |
21:27:18.11 |
+18:41:56.2 |
HIP 105848 |
30.85 |
| 2026-06-06 00:00 |
21:27:15.35 |
+18:42:29.5 |
HIP 105848 |
30.06 |
| 2026-06-06 12:00 |
21:27:12.56 |
+18:43:02.6 |
HIP 105848 |
29.28 |
| 2026-06-07 00:00 |
21:27:09.72 |
+18:43:35.5 |
HIP 105848 |
28.49 |
| 2026-06-07 12:00 |
21:27:06.85 |
+18:44:08.0 |
HIP 105848 |
27.72 |
| 2026-06-08 00:00 |
21:27:03.95 |
+18:44:40.3 |
HIP 105848 |
26.95 |
| 2026-06-08 12:00 |
21:27:01.00 |
+18:45:12.3 |
HIP 105848 |
26.19 |
| 2026-06-09 00:00 |
21:26:58.02 |
+18:45:44.0 |
HIP 105848 |
25.43 |
| 2026-06-09 12:00 |
21:26:55.00 |
+18:46:15.4 |
HIP 105848 |
24.69 |
| 2026-06-10 00:00 |
21:26:51.95 |
+18:46:46.5 |
HIP 105848 |
23.96 |
| 2026-06-10 12:00 |
21:26:48.85 |
+18:47:17.4 |
HIP 105848 |
23.24 |
| 2026-06-11 00:00 |
21:26:45.72 |
+18:47:47.9 |
HIP 105848 |
22.54 |
| 2026-06-11 12:00 |
21:26:42.56 |
+18:48:18.2 |
HIP 105848 |
21.85 |
| 2026-06-12 00:00 |
21:26:39.36 |
+18:48:48.1 |
HIP 105848 |
21.18 |
| 2026-06-12 12:00 |
21:26:36.12 |
+18:49:17.7 |
HIP 105848 |
20.54 |
| 2026-06-13 00:00 |
21:26:32.84 |
+18:49:47.1 |
HIP 105848 |
19.91 |
| 2026-06-13 12:00 |
21:26:29.53 |
+18:50:16.1 |
HIP 105848 |
19.32 |
| 2026-06-14 00:00 |
21:26:26.19 |
+18:50:44.9 |
HIP 105848 |
18.76 |
| 2026-06-14 12:00 |
21:26:22.80 |
+18:51:13.3 |
HIP 105848 |
18.23 |
| 2026-06-15 00:00 |
21:26:19.39 |
+18:51:41.4 |
HIP 105848 |
17.73 |
| 2026-06-15 12:00 |
21:26:15.93 |
+18:52:09.2 |
HIP 105848 |
17.28 |
| 2026-06-16 00:00 |
21:26:12.45 |
+18:52:36.7 |
HIP 105848 |
16.88 |
| 2026-06-16 12:00 |
21:26:08.93 |
+18:53:03.8 |
HIP 105848 |
16.53 |
| 2026-06-17 00:00 |
21:26:05.37 |
+18:53:30.7 |
HIP 105848 |
16.23 |
| 2026-06-17 12:00 |
21:26:01.78 |
+18:53:57.2 |
HIP 105848 |
15.99 |
| 2026-06-18 00:00 |
21:25:58.15 |
+18:54:23.4 |
HIP 105848 |
15.81 |
| 2026-06-18 12:00 |
21:25:54.50 |
+18:54:49.2 |
HIP 105848 |
15.70 |
| 2026-06-19 00:00 |
21:25:50.80 |
+18:55:14.8 |
HIP 105848 |
15.65 |
| 2026-06-19 12:00 |
21:25:47.08 |
+18:55:40.0 |
HIP 105848 |
15.68 |
| 2026-06-20 00:00 |
21:25:43.32 |
+18:56:04.9 |
HIP 105848 |
15.77 |
| 2026-06-20 12:00 |
21:25:39.53 |
+18:56:29.4 |
HIP 105848 |
15.93 |
| 2026-06-21 00:00 |
21:25:35.70 |
+18:56:53.6 |
HIP 105848 |
16.16 |
| 2026-06-21 12:00 |
21:25:31.85 |
+18:57:17.5 |
HIP 105848 |
16.45 |
| 2026-06-22 00:00 |
21:25:27.96 |
+18:57:41.1 |
HIP 105848 |
16.81 |