ASTROSAT CZTI

Data Quality Report

Orbit 05751

Creation date: 2024-06-27T14:58:41.986529
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A02_149T01_9000000740_05751cztM0_level2.evt modeM0/AS1A02_149T01_9000000740_05751cztM0_level2_quad_clean.evt
Size (bytes)552,009,60095,397,120
Size526.4 MB 91.0 MB
Events in quadrant A3,925,622580,531
Events in quadrant B4,212,062585,449
Events in quadrant C3,874,114590,892
Events in quadrant D4,150,099563,526

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01662
B01662
C01664
D01664

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017523153
B017928158
C017440160
D017936156

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81812723.324777%
B81862703.298314%
C8177851.039501%
D81811191.454590%

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 8277 8254 0 0 0.00% 0.00%
B 8277 8249 3 3 0.04% 0.04%
C 8277 8247 0 0 0.00% 0.00%
D 8277 8253 16 16 0.19% 0.19%

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 12 194 10157 43.54 1017 991 210.5
A 0 226 9998 42.78 1017 991 210.5
A 15 236 7635 31.56 1017 991 210.5
B 15 204 86079 420.19 1023 996 202.5
B 11 51 54104 262.28 1023 996 202.5
B 0 229 34109 163.53 1023 996 202.5
C 14 67 14230 56.98 987 993 232.3
C 13 61 7923 29.83 987 993 232.3
C 8 128 4952 17.04 987 993 232.3
D 8 195 82365 333.19 989 957 244.3
D 5 233 60865 245.19 989 957 244.3
D 12 221 59178 238.29 989 957 244.3

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