메타데이터
| 항목 |
값 |
| Designation |
92P/Sanguin |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-03-01T04:24:17.484480Z |
| Orbit solution date (soln_date, UTC) |
2015-12-09T11:26:49Z |
| Obs used |
919 |
| NEO |
- |
| M1 |
11.100 |
| K1 |
17.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2015-12-19.0000000 |
| e |
0.65932548 |
| q (au) |
1.825456 |
| a (au) |
5.358357 |
| i (deg) |
19.444606 |
| Ω (om, deg) |
181.458916 |
| ω (w, deg) |
163.789034 |
| M (ma, deg) |
23.267628 |
밝기
산란 + 전체 선형
$$
M_a = (17.783 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
17.783 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.590 |
| 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 |
| 2014-04-30 |
2014-08-21 |
+1.5336 |
-0.375 |
| 2015-09-19 |
2016-01-13 |
+4.8411 |
-2.744 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
15:27:02.47 |
+01:16:11.7 |
HIP 75751 |
22.23 |
| 2026-05-12 12:00 |
15:26:42.52 |
+01:18:39.5 |
HIP 75614 |
22.76 |
| 2026-05-13 00:00 |
15:26:22.52 |
+01:21:06.0 |
HIP 75614 |
21.91 |
| 2026-05-13 12:00 |
15:26:02.47 |
+01:23:31.2 |
HIP 75468 |
16.84 |
| 2026-05-14 00:00 |
15:25:42.38 |
+01:25:55.0 |
HIP 75468 |
11.28 |
| 2026-05-14 12:00 |
15:25:22.25 |
+01:28:17.5 |
HIP 75468 |
5.71 |
| 2026-05-15 00:00 |
15:25:02.08 |
+01:30:38.5 |
HIP 75468 |
0.20 |
| 2026-05-15 12:00 |
15:24:41.89 |
+01:32:58.1 |
HIP 75468 |
5.41 |
| 2026-05-16 00:00 |
15:24:21.67 |
+01:35:16.2 |
HIP 75468 |
10.96 |
| 2026-05-16 12:00 |
15:24:01.42 |
+01:37:32.9 |
HIP 75468 |
16.51 |
| 2026-05-17 00:00 |
15:23:41.16 |
+01:39:48.1 |
HIP 75266 |
20.67 |
| 2026-05-17 12:00 |
15:23:20.88 |
+01:42:01.7 |
HIP 75266 |
19.36 |
| 2026-05-18 00:00 |
15:23:00.59 |
+01:44:13.8 |
HIP 75222 |
19.27 |
| 2026-05-18 12:00 |
15:22:40.30 |
+01:46:24.3 |
HIP 75222 |
15.01 |
| 2026-05-19 00:00 |
15:22:20.00 |
+01:48:33.3 |
HIP 75222 |
11.86 |
| 2026-05-19 12:00 |
15:21:59.71 |
+01:50:40.7 |
HIP 75222 |
10.83 |
| 2026-05-20 00:00 |
15:21:39.42 |
+01:52:46.4 |
HIP 75222 |
12.44 |
| 2026-05-20 12:00 |
15:21:19.15 |
+01:54:50.5 |
HIP 75222 |
15.90 |
| 2026-05-21 00:00 |
15:20:58.89 |
+01:56:52.9 |
HIP 75222 |
20.26 |
| 2026-05-21 12:00 |
15:20:38.64 |
+01:58:53.7 |
HIP 75044 |
21.78 |
| 2026-05-22 00:00 |
15:20:18.42 |
+02:00:52.8 |
HIP 75044 |
18.46 |
| 2026-05-22 12:00 |
15:19:58.22 |
+02:02:50.1 |
HIP 75044 |
16.34 |
| 2026-05-23 00:00 |
15:19:38.06 |
+02:04:45.8 |
HIP 75044 |
15.89 |
| 2026-05-23 12:00 |
15:19:17.93 |
+02:06:39.7 |
HIP 75044 |
17.23 |
| 2026-05-24 00:00 |
15:18:57.83 |
+02:08:31.8 |
HIP 75044 |
19.97 |
| 2026-05-24 12:00 |
15:18:37.78 |
+02:10:22.2 |
HIP 75044 |
23.64 |
| 2026-05-25 00:00 |
15:18:17.78 |
+02:12:10.8 |
HIP 74921 |
25.24 |
| 2026-05-25 12:00 |
15:17:57.82 |
+02:13:57.7 |
HIP 74921 |
25.01 |
| 2026-05-26 00:00 |
15:17:37.91 |
+02:15:42.7 |
HIP 74704 |
24.44 |
| 2026-05-26 12:00 |
15:17:18.07 |
+02:17:25.9 |
HIP 74704 |
20.21 |
| 2026-05-27 00:00 |
15:16:58.28 |
+02:19:07.2 |
HIP 74704 |
16.57 |
| 2026-05-27 12:00 |
15:16:38.55 |
+02:20:46.8 |
HIP 74704 |
13.96 |
| 2026-05-28 00:00 |
15:16:18.90 |
+02:22:24.4 |
HIP 74704 |
12.98 |
| 2026-05-28 12:00 |
15:15:59.31 |
+02:24:00.2 |
HIP 74704 |
13.96 |
| 2026-05-29 00:00 |
15:15:39.80 |
+02:25:34.2 |
HIP 74704 |
16.52 |
| 2026-05-29 12:00 |
15:15:20.36 |
+02:27:06.2 |
HIP 74704 |
20.05 |
| 2026-05-30 00:00 |
15:15:01.01 |
+02:28:36.3 |
HIP 74704 |
24.10 |
| 2026-05-30 12:00 |
15:14:41.74 |
+02:30:04.6 |
HIP 74513 |
22.35 |
| 2026-05-31 00:00 |
15:14:22.56 |
+02:31:30.9 |
HIP 74513 |
20.24 |
| 2026-05-31 12:00 |
15:14:03.47 |
+02:32:55.3 |
HIP 74513 |
19.20 |
| 2026-06-01 00:00 |
15:13:44.48 |
+02:34:17.7 |
HIP 74513 |
19.39 |
| 2026-06-01 12:00 |
15:13:25.59 |
+02:35:38.2 |
HIP 74513 |
20.76 |
| 2026-06-02 00:00 |
15:13:06.79 |
+02:36:56.7 |
HIP 74513 |
23.06 |