ASTROSAT CZTI

Data Quality Report

Orbit 07104

Creation date: 2024-06-27T15:15:37.628634
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_090T01_9000000970_07104cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07104cztM0_level2_quad_clean.evt
Size (bytes)414,624,96082,146,240
Size395.4 MB 78.3 MB
Events in quadrant A2,822,901524,025
Events in quadrant B3,013,096534,319
Events in quadrant C2,831,618521,309
Events in quadrant D3,475,679483,272

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123922
B0128901
C0124131
D0144271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6079110.180951%
B6079190.312551%
C607980.131601%
D60791201.974009%

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 7264 6080 0 0 0.00% 0.00%
B 7264 6079 2 2 0.03% 0.03%
C 7264 6080 0 0 0.00% 0.00%
D 7264 6079 55 55 0.76% 0.90%

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 0 226 7022 41.83 732 718 150.7
A 12 194 6541 38.64 732 718 150.7
A 13 254 2657 12.87 732 718 150.7
B 0 214 66683 463.61 744 729 142.3
B 0 219 32262 221.66 744 729 142.3
B 0 245 17295 116.45 744 729 142.3
C 9 68 17970 103.49 717 724 166.6
C 4 254 8897 49.05 717 724 166.6
C 1 3 6643 35.52 717 724 166.6
D 8 195 194997 1121.44 702 684 173.3
D 2 216 165506 951.24 702 684 173.3
D 13 137 132754 762.22 702 684 173.3

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