ASTROSAT CZTI

Data Quality Report

Orbit 29095

Creation date: 2024-06-27T20:00:29.925823
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/AS1T03_275T01_9000004180_29095cztM0_level2.evt modeM0/AS1T03_275T01_9000004180_29095cztM0_level2_quad_clean.evt
Size (bytes)488,053,44076,423,680
Size465.4 MB 72.9 MB
Events in quadrant A3,154,292497,509
Events in quadrant B3,432,795501,767
Events in quadrant C3,466,655460,359
Events in quadrant D4,337,712453,089

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128791
B0137901
C0140443
D0169121

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5739400.696986%
B57391162.021258%
C57381111.934472%
D57381622.823283%

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 7154 5740 0 0 0.00% 0.00%
B 7154 5740 47 47 0.66% 0.82%
C 7153 5739 1 1 0.01% 0.02%
D 7153 5739 131 131 1.83% 2.28%

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 6 16 17061 101.96 813 803 159.4
A 13 254 10618 61.56 813 803 159.4
A 0 226 7138 39.73 813 803 159.4
B 5 172 186665 1281.54 803 788 145.0
B 10 246 22181 147.5 803 788 145.0
B 10 245 20120 133.29 803 788 145.0
C 3 233 368586 2127.11 756 763 172.9
C 14 238 127627 733.65 756 763 172.9
C 2 114 14302 78.3 756 763 172.9
D 8 195 784185 4412.04 759 742 177.6
D 1 52 311874 1752.17 759 742 177.6
D 12 233 311316 1749.03 759 742 177.6

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