ASTROSAT CZTI

Data Quality Report

Orbit 28978

Creation date: 2024-06-27T19:58:44.131678
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/AS1A10_048T03_9000004154_28978cztM0_level2.evt modeM0/AS1A10_048T03_9000004154_28978cztM0_level2_quad_clean.evt
Size (bytes)542,266,560107,112,960
Size517.1 MB 102.2 MB
Events in quadrant A3,285,498721,989
Events in quadrant B3,344,547752,116
Events in quadrant C3,301,685700,712
Events in quadrant D6,076,797642,328

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136632
B0137912
C0135782
D0223082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6116520.850229%
B6116771.258993%
C61161111.814912%
D61165789.450621%

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 7451 6117 5 5 0.07% 0.08%
B 7451 6117 5 5 0.07% 0.08%
C 7451 6117 0 0 0.00% 0.00%
D 7451 6117 461 461 6.19% 7.54%

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 96 45796 271.06 833 820 165.9
A 1 113 18656 107.49 833 820 165.9
A 13 254 11345 63.43 833 820 165.9
B 10 245 22828 140.24 838 819 156.9
B 10 247 20756 127.03 838 819 156.9
B 12 111 18758 114.3 838 819 156.9
C 14 238 133041 709.76 798 805 186.3
C 3 233 36523 191.71 798 805 186.3
C 2 114 14555 73.8 798 805 186.3
D 8 195 1484267 8130.15 767 747 182.5
D 7 80 1344014 7361.52 767 747 182.5
D 1 52 258265 1411.28 767 747 182.5

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