메타데이터
| 항목 |
값 |
| Designation |
C/2000 U5 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2000-03-13T14:08:55.055040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:08Z |
| Obs used |
288 |
| NEO |
- |
| M1 |
7.700 |
| K1 |
10.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2000-12-17.0000000 |
| e |
1.00537571 |
| q (au) |
3.486197 |
| a (au) |
-648.509659 |
| i (deg) |
93.652917 |
| Ω (om, deg) |
65.294538 |
| ω (w, deg) |
299.022540 |
| M (ma, deg) |
0.016616 |
밝기
산란 + 전체 선형
$$
M_a = (14.464 + 2.318\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.464 |
| n |
2.318 |
| gf |
1.000 |
| gb |
-0.824 |
| 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) |
| 2026-09-20 00:00 |
18:35:19.19 |
+67:57:52.1 |
HIP 91263 |
13.25 |
| 2026-09-20 12:00 |
18:35:17.84 |
+67:57:13.5 |
HIP 91263 |
12.89 |
| 2026-09-21 00:00 |
18:35:16.54 |
+67:56:34.8 |
HIP 91263 |
12.54 |
| 2026-09-21 12:00 |
18:35:15.30 |
+67:55:56.0 |
HIP 91263 |
12.22 |
| 2026-09-22 00:00 |
18:35:14.11 |
+67:55:17.2 |
HIP 91263 |
11.91 |
| 2026-09-22 12:00 |
18:35:12.98 |
+67:54:38.3 |
HIP 91263 |
11.63 |
| 2026-09-23 00:00 |
18:35:11.91 |
+67:53:59.4 |
HIP 91263 |
11.38 |
| 2026-09-23 12:00 |
18:35:10.90 |
+67:53:20.4 |
HIP 91263 |
11.15 |
| 2026-09-24 00:00 |
18:35:09.94 |
+67:52:41.4 |
HIP 91263 |
10.96 |
| 2026-09-24 12:00 |
18:35:09.04 |
+67:52:02.4 |
HIP 91263 |
10.79 |
| 2026-09-25 00:00 |
18:35:08.20 |
+67:51:23.3 |
HIP 91263 |
10.66 |
| 2026-09-25 12:00 |
18:35:07.42 |
+67:50:44.2 |
HIP 91263 |
10.56 |
| 2026-09-26 00:00 |
18:35:06.69 |
+67:50:05.1 |
HIP 91263 |
10.50 |
| 2026-09-26 12:00 |
18:35:06.01 |
+67:49:25.9 |
HIP 91263 |
10.47 |
| 2026-09-27 00:00 |
18:35:05.40 |
+67:48:46.7 |
HIP 91263 |
10.48 |
| 2026-09-27 12:00 |
18:35:04.84 |
+67:48:07.5 |
HIP 91263 |
10.52 |
| 2026-09-28 00:00 |
18:35:04.34 |
+67:47:28.3 |
HIP 91263 |
10.60 |
| 2026-09-28 12:00 |
18:35:03.90 |
+67:46:49.0 |
HIP 91263 |
10.71 |
| 2026-09-29 00:00 |
18:35:03.51 |
+67:46:09.7 |
HIP 91263 |
10.86 |
| 2026-09-29 12:00 |
18:35:03.18 |
+67:45:30.5 |
HIP 91263 |
11.04 |
| 2026-09-30 00:00 |
18:35:02.90 |
+67:44:51.2 |
HIP 91263 |
11.25 |
| 2026-09-30 12:00 |
18:35:02.68 |
+67:44:11.9 |
HIP 91263 |
11.48 |
| 2026-10-01 00:00 |
18:35:02.52 |
+67:43:32.6 |
HIP 91263 |
11.75 |
| 2026-10-01 12:00 |
18:35:02.42 |
+67:42:53.2 |
HIP 91263 |
12.04 |
| 2026-10-02 00:00 |
18:35:02.37 |
+67:42:13.9 |
HIP 91263 |
12.35 |
| 2026-10-02 12:00 |
18:35:02.38 |
+67:41:34.6 |
HIP 91263 |
12.68 |
| 2026-10-03 00:00 |
18:35:02.44 |
+67:40:55.3 |
HIP 91263 |
13.04 |
| 2026-10-03 12:00 |
18:35:02.56 |
+67:40:16.0 |
HIP 91263 |
13.41 |
| 2026-10-04 00:00 |
18:35:02.74 |
+67:39:36.8 |
HIP 91263 |
13.80 |
| 2026-10-04 12:00 |
18:35:02.98 |
+67:38:57.5 |
HIP 91263 |
14.20 |
| 2026-10-05 00:00 |
18:35:03.27 |
+67:38:18.2 |
HIP 91263 |
14.62 |
| 2026-10-05 12:00 |
18:35:03.61 |
+67:37:39.0 |
HIP 91263 |
15.05 |
| 2026-10-06 00:00 |
18:35:04.02 |
+67:36:59.8 |
HIP 91263 |
15.50 |
| 2026-10-06 12:00 |
18:35:04.47 |
+67:36:20.6 |
HIP 91263 |
15.95 |
| 2026-10-07 00:00 |
18:35:04.99 |
+67:35:41.5 |
HIP 91263 |
16.41 |
| 2026-10-07 12:00 |
18:35:05.56 |
+67:35:02.3 |
HIP 91263 |
16.89 |
| 2026-10-08 00:00 |
18:35:06.19 |
+67:34:23.2 |
HIP 91263 |
17.37 |
| 2026-10-08 12:00 |
18:35:06.87 |
+67:33:44.2 |
HIP 91263 |
17.86 |
| 2026-10-09 00:00 |
18:35:07.61 |
+67:33:05.2 |
HIP 91263 |
18.35 |
| 2026-10-09 12:00 |
18:35:08.40 |
+67:32:26.2 |
HIP 91263 |
18.85 |
| 2026-10-10 00:00 |
18:35:09.25 |
+67:31:47.3 |
HIP 91263 |
19.36 |
| 2026-10-10 12:00 |
18:35:10.15 |
+67:31:08.4 |
HIP 91263 |
19.87 |
| 2026-10-11 00:00 |
18:35:11.11 |
+67:30:29.6 |
HIP 91263 |
20.39 |