Observation information
- date-obs: 2025-05-13
- time-obs: 14:15:29.419400000
- date-end: 2025-05-13
- time-end: 16:16:11.402600000
- obs_id: C09_011T06_9000006468
- exposure: 628.026826382
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_011T06_9000006468_52060cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52060cztM0_level2_quad_clean.evt
|
Size (bytes) | 863,688,960 | 70,027,200 |
Size | 823.7 MB
| 66.8 MB
|
Events in quadrant A | 3,688,198 | 588,125 |
Events in quadrant B | 7,048,267 | 526,506 |
Events in quadrant C | 5,321,917 | 526,744 |
Events in quadrant D | 15,441,680 | 54,315 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14998 | 1 |
B | 0 | 25139 | 1 |
C | 0 | 20068 | 1 |
D | 0 | 50063 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 122 | 0 |
B | 0 | 122 | 0 |
C | 0 | 122 | 0 |
D | 0 | 122 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6082 | 157 | 2.581388% |
B | 6083 | 1338 | 21.995726% |
C | 6083 | 655 | 10.767713% |
D | 6083 | 5582 | 91.763932% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 7242 | 6083 | 110 | 110 | 1.52% | 1.81% |  |
B | 7243 | 6083 | 974 | 974 | 13.45% | 16.01% |  |
C | 7243 | 6084 | 549 | 549 | 7.58% | 9.02% |  |
D | 7242 | 6082 | 5422 | 5422 | 74.87% | 89.15% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 8 | 43 | 307418 | 1942.93 | 636 | 621 | 157.9 |
A | 4 | 249 | 225135 | 1421.84 | 636 | 621 | 157.9 |
A | 4 | 3 | 158425 | 999.37 | 636 | 621 | 157.9 |
B | 8 | 3 | 2120426 | 16884.73 | 590 | 571 | 125.5 |
B | 0 | 172 | 1403747 | 11176.35 | 590 | 571 | 125.5 |
B | 8 | 128 | 357385 | 2842.04 | 590 | 571 | 125.5 |
C | 15 | 224 | 1739866 | 10462.94 | 603 | 598 | 166.2 |
C | 9 | 38 | 280569 | 1684.23 | 603 | 598 | 166.2 |
C | 13 | 3 | 229992 | 1379.97 | 603 | 598 | 166.2 |
D | 15 | 94 | 8158819 | 104094.77 | 264 | 252 | 78.4 |
D | 6 | 42 | 2278267 | 29065.09 | 264 | 252 | 78.4 |
D | 12 | 17 | 1452848 | 18533.6 | 264 | 252 | 78.4 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |