ASTROSAT CZTI

Data Quality Report

Orbit 43733

Creation date: 2024-06-27T22:55:07.662677
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/AS1A13_003T01_9000005902_43733cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43733cztM0_level2_quad_clean.evt
Size (bytes)491,425,92081,918,720
Size468.7 MB 78.1 MB
Events in quadrant A3,550,856589,359
Events in quadrant B3,383,208609,204
Events in quadrant C3,291,316577,060
Events in quadrant D7,565,052343,656

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01384126
B01346913
C01324630
D026148115

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51501843.572816%
B51572554.944735%
C51452534.917396%
D5141216342.073527%

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 6229 5161 37 37 0.59% 0.72%
B 6230 5164 70 70 1.12% 1.36%
C 6230 5158 149 149 2.39% 2.89%
D 6230 5155 1507 1507 24.19% 29.23%

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 691217 5403.78 612 600 127.8
A 15 223 348220 2719.98 612 600 127.8
A 13 248 103255 803.23 612 600 127.8
B 0 200 379680 3168.77 611 594 119.6
B 5 235 342024 2854.01 611 594 119.6
B 12 3 149476 1244.5 611 594 119.6
C 15 158 623191 4423.99 593 595 140.7
C 15 157 173801 1230.75 593 595 140.7
C 3 233 65032 457.87 593 595 140.7
D 7 80 3655811 29503.89 478 462 123.9
D 1 52 744505 6005.49 478 462 123.9
D 5 235 428047 3451.22 478 462 123.9

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