메타데이터
| 항목 |
값 |
| Designation |
C/2012 F3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2015-04-06T16:44:17.200320Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:06Z |
| Obs used |
1763 |
| NEO |
- |
| M1 |
8.100 |
| K1 |
7.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-11-27.0000000 |
| e |
1.00163676 |
| q (au) |
3.456939 |
| a (au) |
-2112.060187 |
| i (deg) |
11.354698 |
| Ω (om, deg) |
164.617309 |
| ω (w, deg) |
104.020514 |
| M (ma, deg) |
-0.001327 |
밝기
산란 + 전체 선형
$$
M_a = (11.830 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.830 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.609 |
| k |
0.800 |
| 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 |
| 2012-01-19 |
2015-04-02 |
+2.7355 |
-2.126 |
| 2015-04-10 |
2016-06-05 |
-2.9643 |
+1.982 |
| 2016-06-05 |
2016-09-23 |
-1.7407 |
+1.316 |
| 2016-09-23 |
2017-10-17 |
+7.8916 |
-5.843 |
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 |
03:03:02.03 |
+07:22:09.9 |
HIP 14266 |
14.76 |
| 2026-06-01 12:00 |
03:03:06.52 |
+07:22:23.8 |
HIP 14266 |
13.82 |
| 2026-06-02 00:00 |
03:03:10.99 |
+07:22:37.6 |
HIP 14266 |
12.91 |
| 2026-06-02 12:00 |
03:03:15.44 |
+07:22:51.3 |
HIP 14266 |
12.04 |
| 2026-06-03 00:00 |
03:03:19.89 |
+07:23:04.8 |
HIP 14266 |
11.22 |
| 2026-06-03 12:00 |
03:03:24.32 |
+07:23:18.1 |
HIP 14266 |
10.45 |
| 2026-06-04 00:00 |
03:03:28.73 |
+07:23:31.3 |
HIP 14266 |
9.76 |
| 2026-06-04 12:00 |
03:03:33.13 |
+07:23:44.4 |
HIP 14266 |
9.15 |
| 2026-06-05 00:00 |
03:03:37.52 |
+07:23:57.3 |
HIP 14266 |
8.64 |
| 2026-06-05 12:00 |
03:03:41.89 |
+07:24:10.0 |
HIP 14266 |
8.25 |
| 2026-06-06 00:00 |
03:03:46.24 |
+07:24:22.6 |
HIP 14266 |
7.99 |
| 2026-06-06 12:00 |
03:03:50.58 |
+07:24:35.0 |
HIP 14266 |
7.88 |
| 2026-06-07 00:00 |
03:03:54.90 |
+07:24:47.3 |
HIP 14266 |
7.91 |
| 2026-06-07 12:00 |
03:03:59.21 |
+07:24:59.4 |
HIP 14266 |
8.10 |
| 2026-06-08 00:00 |
03:04:03.50 |
+07:25:11.3 |
HIP 14266 |
8.41 |
| 2026-06-08 12:00 |
03:04:07.78 |
+07:25:23.1 |
HIP 14266 |
8.85 |
| 2026-06-09 00:00 |
03:04:12.03 |
+07:25:34.7 |
HIP 14266 |
9.38 |
| 2026-06-09 12:00 |
03:04:16.27 |
+07:25:46.2 |
HIP 14266 |
10.00 |
| 2026-06-10 00:00 |
03:04:20.50 |
+07:25:57.5 |
HIP 14266 |
10.68 |
| 2026-06-10 12:00 |
03:04:24.70 |
+07:26:08.6 |
HIP 14266 |
11.42 |
| 2026-06-11 00:00 |
03:04:28.89 |
+07:26:19.6 |
HIP 14266 |
12.20 |
| 2026-06-11 12:00 |
03:04:33.06 |
+07:26:30.4 |
HIP 14266 |
13.01 |
| 2026-06-12 00:00 |
03:04:37.21 |
+07:26:41.0 |
HIP 14266 |
13.85 |
| 2026-06-12 12:00 |
03:04:41.34 |
+07:26:51.5 |
HIP 14266 |
14.72 |
| 2026-06-13 00:00 |
03:04:45.46 |
+07:27:01.8 |
HIP 14266 |
15.59 |
| 2026-06-13 12:00 |
03:04:49.55 |
+07:27:12.0 |
HIP 14266 |
16.48 |
| 2026-06-14 00:00 |
03:04:53.63 |
+07:27:21.9 |
HIP 14266 |
17.38 |
| 2026-06-14 12:00 |
03:04:57.68 |
+07:27:31.7 |
HIP 14266 |
18.29 |
| 2026-06-15 00:00 |
03:05:01.72 |
+07:27:41.4 |
HIP 14266 |
19.20 |
| 2026-06-15 12:00 |
03:05:05.73 |
+07:27:50.8 |
HIP 14266 |
20.12 |
| 2026-06-16 00:00 |
03:05:09.73 |
+07:28:00.1 |
HIP 14266 |
21.04 |
| 2026-06-16 12:00 |
03:05:13.70 |
+07:28:09.3 |
HIP 14266 |
21.96 |
| 2026-06-17 00:00 |
03:05:17.65 |
+07:28:18.2 |
HIP 14266 |
22.88 |
| 2026-06-17 12:00 |
03:05:21.58 |
+07:28:27.0 |
HIP 14266 |
23.80 |
| 2026-06-18 00:00 |
03:05:25.49 |
+07:28:35.6 |
HIP 14266 |
24.72 |
| 2026-06-18 12:00 |
03:05:29.38 |
+07:28:44.0 |
HIP 14266 |
25.64 |
| 2026-06-19 00:00 |
03:05:33.25 |
+07:28:52.3 |
HIP 14266 |
26.56 |
| 2026-06-19 12:00 |
03:05:37.09 |
+07:29:00.4 |
HIP 14266 |
27.47 |
| 2026-06-20 00:00 |
03:05:40.91 |
+07:29:08.3 |
HIP 14266 |
28.38 |
| 2026-06-20 12:00 |
03:05:44.71 |
+07:29:16.0 |
HIP 14266 |
29.29 |
| 2026-06-21 00:00 |
03:05:48.49 |
+07:29:23.6 |
HIP 14266 |
30.19 |
| 2026-06-21 12:00 |
03:05:52.24 |
+07:29:31.0 |
HIP 14536 |
30.62 |
| 2026-06-22 00:00 |
03:05:55.97 |
+07:29:38.2 |
HIP 14536 |
29.87 |