메타데이터
| 항목 |
값 |
| Designation |
C/2010 U3 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2019-02-26T02:57:05.869440Z |
| Orbit solution date (soln_date, UTC) |
2023-05-10T17:42:22Z |
| Obs used |
4354 |
| NEO |
- |
| M1 |
6.300 |
| K1 |
6.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2017-06-18.0000000 |
| e |
1.00085475 |
| q (au) |
8.445819 |
| a (au) |
-9881.022043 |
| i (deg) |
55.512084 |
| Ω (om, deg) |
43.072839 |
| ω (w, deg) |
88.065133 |
| M (ma, deg) |
-0.000620 |
밝기
산란 + 전체 선형
$$
M_a = (4.728 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
4.728 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.962 |
| 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 |
| 2005-11-05 |
2010-11-28 |
+3.2013 |
-4.882 |
| 2010-11-28 |
2014-12-20 |
-9.5815 |
+10.967 |
| 2014-12-20 |
2016-01-14 |
-1.5209 |
+2.101 |
| 2016-01-14 |
2017-01-27 |
-14.7858 |
+15.392 |
| 2017-01-27 |
2019-02-26 |
+8.0171 |
-7.205 |
| 2019-02-26 |
2021-03-05 |
+65.7270 |
-61.376 |
| 2021-03-05 |
2022-12-25 |
-18.5573 |
+20.893 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
14:46:40.43 |
-12:57:32.8 |
HIP 72347 |
14.32 |
| 2026-03-26 12:00 |
14:46:35.23 |
-12:57:29.8 |
HIP 72347 |
15.58 |
| 2026-03-27 00:00 |
14:46:29.98 |
-12:57:26.6 |
HIP 72347 |
16.84 |
| 2026-03-27 12:00 |
14:46:24.70 |
-12:57:23.3 |
HIP 72347 |
18.12 |
| 2026-03-28 00:00 |
14:46:19.37 |
-12:57:19.9 |
HIP 72347 |
19.42 |
| 2026-03-28 12:00 |
14:46:14.00 |
-12:57:16.3 |
HIP 72347 |
20.72 |
| 2026-03-29 00:00 |
14:46:08.59 |
-12:57:12.6 |
HIP 72347 |
22.03 |
| 2026-03-29 12:00 |
14:46:03.15 |
-12:57:08.7 |
HIP 72347 |
23.35 |
| 2026-03-30 00:00 |
14:45:57.66 |
-12:57:04.7 |
HIP 72347 |
24.68 |
| 2026-03-30 12:00 |
14:45:52.14 |
-12:57:00.6 |
HIP 72347 |
26.03 |
| 2026-03-31 00:00 |
14:45:46.58 |
-12:56:56.3 |
HIP 72347 |
27.38 |
| 2026-03-31 12:00 |
14:45:40.98 |
-12:56:51.9 |
HIP 72347 |
28.74 |
| 2026-04-01 00:00 |
14:45:35.34 |
-12:56:47.4 |
HIP 72347 |
30.11 |
| 2026-04-01 12:00 |
14:45:29.67 |
-12:56:42.8 |
HIP 72347 |
31.49 |
| 2026-04-02 00:00 |
14:45:23.96 |
-12:56:38.1 |
HIP 72347 |
32.88 |
| 2026-04-02 12:00 |
14:45:18.22 |
-12:56:33.2 |
HIP 72347 |
34.28 |
| 2026-04-03 00:00 |
14:45:12.44 |
-12:56:28.2 |
HIP 72347 |
35.69 |
| 2026-04-03 12:00 |
14:45:06.63 |
-12:56:23.1 |
HIP 72174 |
36.36 |
| 2026-04-04 00:00 |
14:45:00.78 |
-12:56:17.9 |
HIP 72174 |
36.66 |
| 2026-04-04 12:00 |
14:44:54.90 |
-12:56:12.6 |
HIP 72174 |
37.02 |
| 2026-04-05 00:00 |
14:44:48.99 |
-12:56:07.1 |
HIP 72174 |
37.43 |
| 2026-04-05 12:00 |
14:44:43.05 |
-12:56:01.6 |
HIP 72174 |
37.89 |
| 2026-04-06 00:00 |
14:44:37.07 |
-12:55:56.0 |
HIP 72174 |
38.41 |
| 2026-04-06 12:00 |
14:44:31.06 |
-12:55:50.2 |
HIP 72174 |
38.97 |
| 2026-04-07 00:00 |
14:44:25.03 |
-12:55:44.4 |
HIP 72174 |
39.59 |
| 2026-04-07 12:00 |
14:44:18.96 |
-12:55:38.4 |
HIP 72174 |
40.25 |
| 2026-04-08 00:00 |
14:44:12.86 |
-12:55:32.4 |
HIP 72174 |
40.95 |
| 2026-04-08 12:00 |
14:44:06.73 |
-12:55:26.3 |
HIP 71823 |
39.59 |
| 2026-04-09 00:00 |
14:44:00.58 |
-12:55:20.0 |
HIP 71823 |
38.13 |
| 2026-04-09 12:00 |
14:43:54.40 |
-12:55:13.7 |
HIP 71823 |
36.67 |
| 2026-04-10 00:00 |
14:43:48.19 |
-12:55:07.3 |
HIP 71823 |
35.21 |
| 2026-04-10 12:00 |
14:43:41.95 |
-12:55:00.8 |
HIP 71823 |
33.74 |
| 2026-04-11 00:00 |
14:43:35.69 |
-12:54:54.3 |
HIP 71823 |
32.28 |
| 2026-04-11 12:00 |
14:43:29.40 |
-12:54:47.6 |
HIP 71823 |
30.81 |
| 2026-04-12 00:00 |
14:43:23.08 |
-12:54:40.9 |
HIP 71823 |
29.35 |
| 2026-04-12 12:00 |
14:43:16.74 |
-12:54:34.1 |
HIP 71823 |
27.89 |
| 2026-04-13 00:00 |
14:43:10.38 |
-12:54:27.3 |
HIP 71823 |
26.43 |
| 2026-04-13 12:00 |
14:43:04.00 |
-12:54:20.3 |
HIP 71823 |
24.98 |
| 2026-04-14 00:00 |
14:42:57.59 |
-12:54:13.3 |
HIP 71823 |
23.53 |
| 2026-04-14 12:00 |
14:42:51.16 |
-12:54:06.3 |
HIP 71823 |
22.10 |
| 2026-04-15 00:00 |
14:42:44.71 |
-12:53:59.2 |
HIP 71823 |
20.69 |
| 2026-04-15 12:00 |
14:42:38.23 |
-12:53:52.0 |
HIP 71823 |
19.29 |
| 2026-04-16 00:00 |
14:42:31.74 |
-12:53:44.8 |
HIP 71823 |
17.92 |