Observation information
- date-obs: 2023-11-18
- time-obs: 11:29:39.748200000
- date-end: 2023-11-18
- time-end: 13:41:33.746400000
- obs_id: A13_037T01_9000005930
- exposure: 6900.75407165
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_037T01_9000005930_44019cztM0_level2.fits
| modeM0/AS1A13_037T01_9000005930_44019cztM0_level2_quad_clean.evt
|
Size (bytes) | 570,237,120 | 117,316,800 |
Size | 543.8 MB
| 111.9 MB
|
Events in quadrant A | 5,301,994 | 778,323 |
Events in quadrant B | 3,880,184 | 817,518 |
Events in quadrant C | 5,030,439 | 777,701 |
Events in quadrant D | 6,310,585 | 653,043 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 154 | 0 |
B | 0 | 154 | 0 |
C | 0 | 154 | 0 |
D | 0 | 154 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21568 | 1 |
B | 0 | 16491 | 1 |
C | 0 | 20056 | 1 |
D | 0 | 23827 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3 | 0 |
B | 0 | 3 | 0 |
C | 0 | 3 | 0 |
D | 0 | 3 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7544 | 266 | 3.525981% |
B | 7545 | 161 | 2.133863% |
C | 7545 | 194 | 2.571239% |
D | 7545 | 786 | 10.417495% |
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 | 7914 | 7545 | 95 | 95 | 1.20% | 1.26% |  |
B | 7915 | 7546 | 42 | 42 | 0.53% | 0.56% |  |
C | 7915 | 7546 | 69 | 69 | 0.87% | 0.91% |  |
D | 7915 | 7545 | 604 | 604 | 7.63% | 8.01% |  |
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 | 10 | 83 | 1289856 | 7277.73 | 840 | 821 | 177.1 |
A | 14 | 238 | 502183 | 2830.63 | 840 | 821 | 177.1 |
A | 15 | 222 | 191155 | 1074.6 | 840 | 821 | 177.1 |
B | 3 | 112 | 137537 | 811.83 | 841 | 813 | 168.4 |
B | 2 | 2 | 129531 | 764.29 | 841 | 813 | 168.4 |
B | 15 | 36 | 111097 | 654.84 | 841 | 813 | 168.4 |
C | 3 | 233 | 1466070 | 7474.31 | 821 | 825 | 196.0 |
C | 15 | 158 | 249439 | 1268.2 | 821 | 825 | 196.0 |
C | 15 | 157 | 43718 | 218.8 | 821 | 825 | 196.0 |
D | 5 | 222 | 658647 | 3214.32 | 802 | 775 | 204.7 |
D | 7 | 80 | 583911 | 2849.16 | 802 | 775 | 204.7 |
D | 13 | 138 | 580341 | 2831.72 | 802 | 775 | 204.7 |
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 |  |