ASTROSAT CZTI

Data Quality Report

Orbit 05128

Creation date: 2024-06-27T14:51:41.901614
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/AS1G05_230T05_9000000648_05128cztM0_level2.evt modeM0/AS1G05_230T05_9000000648_05128cztM0_level2_quad_clean.evt
Size (bytes)513,688,32071,925,120
Size489.9 MB 68.6 MB
Events in quadrant A3,509,270413,621
Events in quadrant B4,384,013417,332
Events in quadrant C3,383,040423,087
Events in quadrant D3,773,795404,268

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159186
B0181041
C0156003
D0168261

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74622813.765746%
B74633745.011390%
C74621532.050389%
D74632913.899236%

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 7528 7464 25 25 0.33% 0.33%
B 7528 7464 82 82 1.09% 1.10%
C 7528 7464 0 0 0.00% 0.00%
D 7528 7464 114 114 1.51% 1.53%

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 72741 394.45 876 852 182.3
A 0 50 46016 247.81 876 852 182.3
A 0 226 9338 46.56 876 852 182.3
B 8 3 366691 2118.08 879 854 172.7
B 4 48 333709 1927.13 879 854 172.7
B 15 204 104007 597.22 879 854 172.7
C 12 4 17570 82.87 860 862 201.6
C 13 61 6878 29.84 860 862 201.6
C 9 16 6034 25.65 860 862 201.6
D 2 33 520902 2421.38 857 827 214.8
D 2 14 18739 83.4 857 827 214.8
D 2 234 11232 48.44 857 827 214.8

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