메타데이터
| 항목 |
값 |
| Designation |
P/2007 Q2 (Gilmore) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2007-08-23T21:08:36.447360Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:11Z |
| Obs used |
146 |
| NEO |
- |
| M1 |
16.700 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2007-09-13.0000000 |
| e |
0.67122948 |
| q (au) |
1.839016 |
| a (au) |
5.593616 |
| i (deg) |
10.238439 |
| Ω (om, deg) |
172.248957 |
| ω (w, deg) |
163.150307 |
| M (ma, deg) |
1.498898 |
밝기
산란 + 전체 선형
$$
M_a = (16.814 + 3.468\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.814 |
| n |
3.468 |
| gf |
0.979 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
1.000 |
| 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) |
| 2026-05-12 00:00 |
09:23:16.71 |
+10:33:19.8 |
HIP 46106 |
12.95 |
| 2026-05-12 12:00 |
09:23:19.70 |
+10:33:27.2 |
HIP 46106 |
12.22 |
| 2026-05-13 00:00 |
09:23:22.79 |
+10:33:34.1 |
HIP 46106 |
11.47 |
| 2026-05-13 12:00 |
09:23:25.98 |
+10:33:40.5 |
HIP 46106 |
10.69 |
| 2026-05-14 00:00 |
09:23:29.26 |
+10:33:46.4 |
HIP 46106 |
9.90 |
| 2026-05-14 12:00 |
09:23:32.65 |
+10:33:51.7 |
HIP 46106 |
9.08 |
| 2026-05-15 00:00 |
09:23:36.13 |
+10:33:56.6 |
HIP 46106 |
8.24 |
| 2026-05-15 12:00 |
09:23:39.71 |
+10:34:00.9 |
HIP 46106 |
7.38 |
| 2026-05-16 00:00 |
09:23:43.39 |
+10:34:04.7 |
HIP 46106 |
6.50 |
| 2026-05-16 12:00 |
09:23:47.16 |
+10:34:07.9 |
HIP 46106 |
5.61 |
| 2026-05-17 00:00 |
09:23:51.03 |
+10:34:10.6 |
HIP 46106 |
4.70 |
| 2026-05-17 12:00 |
09:23:55.00 |
+10:34:12.9 |
HIP 46106 |
3.79 |
| 2026-05-18 00:00 |
09:23:59.06 |
+10:34:14.6 |
HIP 46106 |
2.90 |
| 2026-05-18 12:00 |
09:24:03.22 |
+10:34:15.7 |
HIP 46106 |
2.09 |
| 2026-05-19 00:00 |
09:24:07.47 |
+10:34:16.4 |
HIP 46106 |
1.53 |
| 2026-05-19 12:00 |
09:24:11.82 |
+10:34:16.5 |
HIP 46106 |
1.58 |
| 2026-05-20 00:00 |
09:24:16.26 |
+10:34:16.2 |
HIP 46106 |
2.24 |
| 2026-05-20 12:00 |
09:24:20.80 |
+10:34:15.3 |
HIP 46106 |
3.16 |
| 2026-05-21 00:00 |
09:24:25.43 |
+10:34:13.9 |
HIP 46106 |
4.20 |
| 2026-05-21 12:00 |
09:24:30.15 |
+10:34:12.0 |
HIP 46106 |
5.30 |
| 2026-05-22 00:00 |
09:24:34.96 |
+10:34:09.6 |
HIP 46106 |
6.44 |
| 2026-05-22 12:00 |
09:24:39.87 |
+10:34:06.6 |
HIP 46106 |
7.61 |
| 2026-05-23 00:00 |
09:24:44.86 |
+10:34:03.2 |
HIP 46106 |
8.82 |
| 2026-05-23 12:00 |
09:24:49.95 |
+10:33:59.3 |
HIP 46189 |
9.57 |
| 2026-05-24 00:00 |
09:24:55.13 |
+10:33:54.8 |
HIP 46189 |
9.17 |
| 2026-05-24 12:00 |
09:25:00.39 |
+10:33:49.9 |
HIP 46189 |
8.93 |
| 2026-05-25 00:00 |
09:25:05.75 |
+10:33:44.4 |
HIP 46189 |
8.87 |
| 2026-05-25 12:00 |
09:25:11.19 |
+10:33:38.5 |
HIP 46189 |
9.00 |
| 2026-05-26 00:00 |
09:25:16.72 |
+10:33:32.0 |
HIP 46189 |
9.32 |
| 2026-05-26 12:00 |
09:25:22.34 |
+10:33:25.1 |
HIP 46189 |
9.83 |
| 2026-05-27 00:00 |
09:25:28.04 |
+10:33:17.6 |
HIP 46189 |
10.51 |
| 2026-05-27 12:00 |
09:25:33.83 |
+10:33:09.7 |
HIP 46189 |
11.33 |
| 2026-05-28 00:00 |
09:25:39.71 |
+10:33:01.3 |
HIP 46189 |
12.27 |
| 2026-05-28 12:00 |
09:25:45.67 |
+10:32:52.4 |
HIP 46189 |
13.31 |
| 2026-05-29 00:00 |
09:25:51.72 |
+10:32:43.0 |
HIP 46189 |
14.45 |
| 2026-05-29 12:00 |
09:25:57.85 |
+10:32:33.1 |
HIP 46189 |
15.66 |
| 2026-05-30 00:00 |
09:26:04.07 |
+10:32:22.7 |
HIP 46189 |
16.93 |
| 2026-05-30 12:00 |
09:26:10.37 |
+10:32:11.8 |
HIP 46189 |
18.26 |
| 2026-05-31 00:00 |
09:26:16.75 |
+10:32:00.5 |
HIP 46189 |
19.64 |
| 2026-05-31 12:00 |
09:26:23.22 |
+10:31:48.7 |
HIP 46189 |
21.06 |
| 2026-06-01 00:00 |
09:26:29.77 |
+10:31:36.3 |
HIP 46189 |
22.53 |
| 2026-06-01 12:00 |
09:26:36.39 |
+10:31:23.6 |
HIP 46189 |
24.03 |
| 2026-06-02 00:00 |
09:26:43.11 |
+10:31:10.3 |
HIP 46189 |
25.57 |