Observation information
- date-obs: 2025-05-07
- time-obs: 21:00:48.554700000
- date-end: 2025-05-07
- time-end: 23:07:31.526500000
- obs_id: C09_011T06_9000006468
- exposure: 4875.80324924
- 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_51975cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51975cztM0_level2_quad_clean.evt
|
Size (bytes) | 649,105,920 | 89,280,000 |
Size | 619.0 MB
| 85.1 MB
|
Events in quadrant A | 6,021,106 | 553,847 |
Events in quadrant B | 4,229,106 | 671,779 |
Events in quadrant C | 8,296,025 | 464,684 |
Events in quadrant D | 4,980,176 | 561,083 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22528 | 2 |
B | 0 | 17074 | 2 |
C | 0 | 29197 | 2 |
D | 0 | 19258 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6472 | 857 | 13.241656% |
B | 6473 | 151 | 2.332767% |
C | 6472 | 1891 | 29.218171% |
D | 6472 | 189 | 2.920272% |
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 | 7603 | 6474 | 650 | 650 | 8.55% | 10.04% |  |
B | 7604 | 6475 | 70 | 70 | 0.92% | 1.08% |  |
C | 7603 | 6474 | 1389 | 1389 | 18.27% | 21.46% |  |
D | 7603 | 6474 | 148 | 148 | 1.95% | 2.29% |  |
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 | 249 | 1274672 | 8055.75 | 634 | 619 | 158.2 |
A | 7 | 64 | 1199541 | 7580.7 | 634 | 619 | 158.2 |
A | 8 | 62 | 310124 | 1956.98 | 634 | 619 | 158.2 |
B | 8 | 128 | 290611 | 2049.78 | 678 | 655 | 141.5 |
B | 10 | 254 | 167572 | 1179.98 | 678 | 655 | 141.5 |
B | 4 | 171 | 153839 | 1082.9 | 678 | 655 | 141.5 |
C | 15 | 224 | 4999748 | 30991.38 | 579 | 574 | 161.3 |
C | 13 | 3 | 479061 | 2966.28 | 579 | 574 | 161.3 |
C | 4 | 5 | 168735 | 1042.48 | 579 | 574 | 161.3 |
D | 6 | 42 | 876958 | 4637.8 | 657 | 627 | 189.0 |
D | 2 | 172 | 307448 | 1623.79 | 657 | 627 | 189.0 |
D | 3 | 12 | 258868 | 1366.69 | 657 | 627 | 189.0 |
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 |  |