Observation information
- date-obs: 2025-04-28
- time-obs: 20:00:26.403000000
- date-end: 2025-04-28
- time-end: 22:13:45.379500000
- obs_id: C09_011T05_9000006466
- exposure: 4208.29880351
- 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_011T05_9000006466_51841cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51841cztM0_level2_quad_clean.evt
|
Size (bytes) | 659,200,320 | 88,004,160 |
Size | 628.7 MB
| 83.9 MB
|
Events in quadrant A | 5,121,409 | 582,397 |
Events in quadrant B | 4,057,118 | 671,765 |
Events in quadrant C | 4,491,976 | 585,528 |
Events in quadrant D | 10,216,731 | 362,693 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 19770 | 2 |
B | 0 | 16867 | 3 |
C | 0 | 18057 | 2 |
D | 0 | 35002 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 14 | 0 |
C | 0 | 14 | 0 |
D | 0 | 14 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6628 | 513 | 7.739891% |
B | 6627 | 177 | 2.670892% |
C | 6627 | 382 | 5.764298% |
D | 6627 | 2700 | 40.742417% |
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 | 7683 | 6629 | 419 | 419 | 5.45% | 6.32% |  |
B | 7682 | 6628 | 73 | 73 | 0.95% | 1.10% |  |
C | 7682 | 6628 | 316 | 316 | 4.11% | 4.77% |  |
D | 7682 | 6627 | 2333 | 2333 | 30.37% | 35.20% |  |
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 | 15 | 174 | 1103449 | 6740.62 | 665 | 648 | 163.6 |
A | 12 | 3 | 522708 | 3190.97 | 665 | 648 | 163.6 |
A | 11 | 3 | 210765 | 1284.29 | 665 | 648 | 163.6 |
B | 5 | 32 | 296142 | 2045.72 | 685 | 663 | 144.4 |
B | 5 | 185 | 176337 | 1216.26 | 685 | 663 | 144.4 |
B | 5 | 172 | 165782 | 1143.19 | 685 | 663 | 144.4 |
C | 15 | 218 | 790441 | 4258.94 | 669 | 663 | 185.4 |
C | 13 | 3 | 150452 | 807.75 | 669 | 663 | 185.4 |
C | 15 | 224 | 108905 | 583.7 | 669 | 663 | 185.4 |
D | 11 | 129 | 4472172 | 29712.49 | 526 | 506 | 150.5 |
D | 3 | 12 | 1209502 | 8033.31 | 526 | 506 | 150.5 |
D | 12 | 6 | 995330 | 6610.22 | 526 | 506 | 150.5 |
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 |  |