ASTROSAT CZTI

Data Quality Report

Orbit 40089

Creation date: 2024-06-27T22:12:13.213146
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/AS1T05_086T01_9000005518_40089cztM0_level2.fits modeM0/AS1T05_086T01_9000005518_40089cztM0_level2_quad_clean.evt
Size (bytes)470,897,28097,433,280
Size449.1 MB 92.9 MB
Events in quadrant A3,113,133700,147
Events in quadrant B2,558,707715,304
Events in quadrant C5,303,408633,105
Events in quadrant D6,016,745506,111

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125062
B0113801
C0195491
D0217651

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5652300.530786%
B565250.088464%
C56525099.005662%
D5652112219.851380%

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 6965 5653 18 18 0.26% 0.32%
B 6965 5653 1 1 0.01% 0.02%
C 6965 5653 449 449 6.45% 7.94%
D 6965 5653 1019 1019 14.63% 18.03%

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 427604 3187.37 637 628 134.0
A 13 248 131153 974.37 637 628 134.0
A 2 79 60860 449.63 637 628 134.0
B 4 171 17846 137.14 631 616 125.6
B 12 0 16172 123.82 631 616 125.6
B 0 230 15855 121.29 631 616 125.6
C 9 187 2546674 17935.04 595 601 142.0
C 15 214 225470 1584.02 595 601 142.0
C 15 208 101217 708.76 595 601 142.0
D 12 227 1574683 11275.13 553 537 139.6
D 2 249 963981 6900.86 553 537 139.6
D 13 249 801108 5734.25 553 537 139.6

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