메타데이터
| 항목 |
값 |
| Designation |
C/2001 K3 (Skiff) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2001-04-22T21:02:11.837760Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:09Z |
| Obs used |
331 |
| NEO |
- |
| M1 |
12.100 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2001-07-19.0000000 |
| e |
0.99893567 |
| q (au) |
3.060125 |
| a (au) |
2875.163026 |
| i (deg) |
52.026577 |
| Ω (om, deg) |
289.850117 |
| ω (w, deg) |
3.452328 |
| M (ma, deg) |
0.000557 |
밝기
산란 + 전체 선형
$$
M_a = (14.428 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.428 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.752 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
06:06:47.35 |
+44:04:03.8 |
HIP 29059 |
20.12 |
| 2026-03-26 12:00 |
06:06:47.67 |
+44:03:48.3 |
HIP 29059 |
19.87 |
| 2026-03-27 00:00 |
06:06:48.03 |
+44:03:32.7 |
HIP 29059 |
19.62 |
| 2026-03-27 12:00 |
06:06:48.42 |
+44:03:17.2 |
HIP 29059 |
19.36 |
| 2026-03-28 00:00 |
06:06:48.84 |
+44:03:01.6 |
HIP 29059 |
19.11 |
| 2026-03-28 12:00 |
06:06:49.29 |
+44:02:46.1 |
HIP 29059 |
18.85 |
| 2026-03-29 00:00 |
06:06:49.77 |
+44:02:30.6 |
HIP 29059 |
18.59 |
| 2026-03-29 12:00 |
06:06:50.28 |
+44:02:15.2 |
HIP 29059 |
18.32 |
| 2026-03-30 00:00 |
06:06:50.82 |
+44:01:59.7 |
HIP 29059 |
18.05 |
| 2026-03-30 12:00 |
06:06:51.39 |
+44:01:44.3 |
HIP 29059 |
17.78 |
| 2026-03-31 00:00 |
06:06:52.00 |
+44:01:28.8 |
HIP 29059 |
17.51 |
| 2026-03-31 12:00 |
06:06:52.63 |
+44:01:13.4 |
HIP 29059 |
17.24 |
| 2026-04-01 00:00 |
06:06:53.30 |
+44:00:58.0 |
HIP 29059 |
16.96 |
| 2026-04-01 12:00 |
06:06:53.99 |
+44:00:42.7 |
HIP 29059 |
16.68 |
| 2026-04-02 00:00 |
06:06:54.72 |
+44:00:27.3 |
HIP 29059 |
16.39 |
| 2026-04-02 12:00 |
06:06:55.47 |
+44:00:12.0 |
HIP 29059 |
16.11 |
| 2026-04-03 00:00 |
06:06:56.26 |
+43:59:56.7 |
HIP 29059 |
15.82 |
| 2026-04-03 12:00 |
06:06:57.08 |
+43:59:41.5 |
HIP 29059 |
15.53 |
| 2026-04-04 00:00 |
06:06:57.92 |
+43:59:26.2 |
HIP 29059 |
15.23 |
| 2026-04-04 12:00 |
06:06:58.80 |
+43:59:11.0 |
HIP 29059 |
14.93 |
| 2026-04-05 00:00 |
06:06:59.71 |
+43:58:55.8 |
HIP 29059 |
14.63 |
| 2026-04-05 12:00 |
06:07:00.64 |
+43:58:40.7 |
HIP 29059 |
14.33 |
| 2026-04-06 00:00 |
06:07:01.61 |
+43:58:25.6 |
HIP 29059 |
14.03 |
| 2026-04-06 12:00 |
06:07:02.60 |
+43:58:10.5 |
HIP 29059 |
13.72 |
| 2026-04-07 00:00 |
06:07:03.63 |
+43:57:55.4 |
HIP 29059 |
13.41 |
| 2026-04-07 12:00 |
06:07:04.68 |
+43:57:40.4 |
HIP 29059 |
13.09 |
| 2026-04-08 00:00 |
06:07:05.76 |
+43:57:25.4 |
HIP 29059 |
12.77 |
| 2026-04-08 12:00 |
06:07:06.88 |
+43:57:10.4 |
HIP 29059 |
12.45 |
| 2026-04-09 00:00 |
06:07:08.02 |
+43:56:55.5 |
HIP 29059 |
12.13 |
| 2026-04-09 12:00 |
06:07:09.19 |
+43:56:40.6 |
HIP 29059 |
11.81 |
| 2026-04-10 00:00 |
06:07:10.39 |
+43:56:25.8 |
HIP 29059 |
11.48 |
| 2026-04-10 12:00 |
06:07:11.62 |
+43:56:11.0 |
HIP 29059 |
11.15 |
| 2026-04-11 00:00 |
06:07:12.88 |
+43:55:56.2 |
HIP 29059 |
10.82 |
| 2026-04-11 12:00 |
06:07:14.16 |
+43:55:41.4 |
HIP 29059 |
10.48 |
| 2026-04-12 00:00 |
06:07:15.48 |
+43:55:26.7 |
HIP 29059 |
10.15 |
| 2026-04-12 12:00 |
06:07:16.82 |
+43:55:12.1 |
HIP 29059 |
9.81 |
| 2026-04-13 00:00 |
06:07:18.20 |
+43:54:57.5 |
HIP 29059 |
9.46 |
| 2026-04-13 12:00 |
06:07:19.60 |
+43:54:42.9 |
HIP 29059 |
9.12 |
| 2026-04-14 00:00 |
06:07:21.02 |
+43:54:28.4 |
HIP 29059 |
8.78 |
| 2026-04-14 12:00 |
06:07:22.48 |
+43:54:13.9 |
HIP 29059 |
8.43 |
| 2026-04-15 00:00 |
06:07:23.97 |
+43:53:59.5 |
HIP 29059 |
8.08 |
| 2026-04-15 12:00 |
06:07:25.48 |
+43:53:45.1 |
HIP 29059 |
7.73 |
| 2026-04-16 00:00 |
06:07:27.02 |
+43:53:30.7 |
HIP 29059 |
7.38 |