메타데이터
| 항목 |
값 |
| Designation |
C/2000 Y1 (Tubbiolo) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2001-02-02T03:45:55.477440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:08Z |
| Obs used |
94 |
| NEO |
- |
| M1 |
6.300 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2001-05-01.0000000 |
| e |
1.00234998 |
| q (au) |
7.974764 |
| a (au) |
-3393.538738 |
| i (deg) |
137.974246 |
| Ω (om, deg) |
239.394833 |
| ω (w, deg) |
181.732505 |
| M (ma, deg) |
0.000438 |
밝기
산란 + 전체 선형
$$
M_a = (9.458 + 2.166\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.458 |
| n |
2.166 |
| gf |
0.979 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
9.922 |
| 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 |
19:13:50.59 |
-53:27:47.8 |
HIP 94611 |
13.54 |
| 2026-03-26 12:00 |
19:13:51.18 |
-53:28:06.9 |
HIP 94611 |
13.59 |
| 2026-03-27 00:00 |
19:13:51.74 |
-53:28:26.0 |
HIP 94611 |
13.66 |
| 2026-03-27 12:00 |
19:13:52.25 |
-53:28:45.1 |
HIP 94611 |
13.75 |
| 2026-03-28 00:00 |
19:13:52.72 |
-53:29:04.4 |
HIP 94611 |
13.84 |
| 2026-03-28 12:00 |
19:13:53.15 |
-53:29:23.7 |
HIP 94611 |
13.95 |
| 2026-03-29 00:00 |
19:13:53.55 |
-53:29:43.1 |
HIP 94611 |
14.08 |
| 2026-03-29 12:00 |
19:13:53.90 |
-53:30:02.6 |
HIP 94611 |
14.21 |
| 2026-03-30 00:00 |
19:13:54.21 |
-53:30:22.2 |
HIP 94611 |
14.36 |
| 2026-03-30 12:00 |
19:13:54.49 |
-53:30:41.8 |
HIP 94611 |
14.51 |
| 2026-03-31 00:00 |
19:13:54.72 |
-53:31:01.5 |
HIP 94611 |
14.68 |
| 2026-03-31 12:00 |
19:13:54.91 |
-53:31:21.2 |
HIP 94611 |
14.86 |
| 2026-04-01 00:00 |
19:13:55.07 |
-53:31:41.1 |
HIP 94611 |
15.05 |
| 2026-04-01 12:00 |
19:13:55.18 |
-53:32:01.0 |
HIP 94611 |
15.25 |
| 2026-04-02 00:00 |
19:13:55.25 |
-53:32:20.9 |
HIP 94611 |
15.46 |
| 2026-04-02 12:00 |
19:13:55.28 |
-53:32:40.9 |
HIP 94611 |
15.68 |
| 2026-04-03 00:00 |
19:13:55.27 |
-53:33:01.0 |
HIP 94611 |
15.91 |
| 2026-04-03 12:00 |
19:13:55.23 |
-53:33:21.1 |
HIP 94611 |
16.14 |
| 2026-04-04 00:00 |
19:13:55.14 |
-53:33:41.3 |
HIP 94611 |
16.39 |
| 2026-04-04 12:00 |
19:13:55.01 |
-53:34:01.6 |
HIP 94611 |
16.64 |
| 2026-04-05 00:00 |
19:13:54.84 |
-53:34:21.9 |
HIP 94611 |
16.90 |
| 2026-04-05 12:00 |
19:13:54.63 |
-53:34:42.2 |
HIP 94611 |
17.17 |
| 2026-04-06 00:00 |
19:13:54.38 |
-53:35:02.6 |
HIP 94611 |
17.45 |
| 2026-04-06 12:00 |
19:13:54.08 |
-53:35:23.1 |
HIP 94611 |
17.73 |
| 2026-04-07 00:00 |
19:13:53.75 |
-53:35:43.6 |
HIP 94611 |
18.02 |
| 2026-04-07 12:00 |
19:13:53.38 |
-53:36:04.1 |
HIP 94611 |
18.31 |
| 2026-04-08 00:00 |
19:13:52.96 |
-53:36:24.7 |
HIP 94611 |
18.62 |
| 2026-04-08 12:00 |
19:13:52.51 |
-53:36:45.3 |
HIP 94611 |
18.92 |
| 2026-04-09 00:00 |
19:13:52.01 |
-53:37:06.0 |
HIP 94611 |
19.24 |
| 2026-04-09 12:00 |
19:13:51.48 |
-53:37:26.7 |
HIP 94611 |
19.56 |
| 2026-04-10 00:00 |
19:13:50.90 |
-53:37:47.5 |
HIP 94611 |
19.88 |
| 2026-04-10 12:00 |
19:13:50.28 |
-53:38:08.2 |
HIP 94611 |
20.21 |
| 2026-04-11 00:00 |
19:13:49.62 |
-53:38:29.1 |
HIP 94611 |
20.55 |
| 2026-04-11 12:00 |
19:13:48.92 |
-53:38:49.9 |
HIP 94611 |
20.89 |
| 2026-04-12 00:00 |
19:13:48.18 |
-53:39:10.8 |
HIP 94660 |
21.19 |
| 2026-04-12 12:00 |
19:13:47.39 |
-53:39:31.7 |
HIP 94660 |
21.08 |
| 2026-04-13 00:00 |
19:13:46.57 |
-53:39:52.7 |
HIP 94660 |
20.98 |
| 2026-04-13 12:00 |
19:13:45.71 |
-53:40:13.6 |
HIP 94660 |
20.89 |
| 2026-04-14 00:00 |
19:13:44.80 |
-53:40:34.6 |
HIP 94660 |
20.81 |
| 2026-04-14 12:00 |
19:13:43.85 |
-53:40:55.6 |
HIP 94660 |
20.75 |
| 2026-04-15 00:00 |
19:13:42.86 |
-53:41:16.7 |
HIP 94660 |
20.69 |
| 2026-04-15 12:00 |
19:13:41.83 |
-53:41:37.7 |
HIP 94660 |
20.65 |
| 2026-04-16 00:00 |
19:13:40.76 |
-53:41:58.8 |
HIP 94660 |
20.62 |