ASTROSAT CZTI

Data Quality Report

Orbit 23533

Creation date: 2024-06-27T18:55:48.663696
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/AS1A07_011T01_9000003482_23533cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23533cztM0_level2_quad_clean.evt
Size (bytes)464,434,560107,228,160
Size442.9 MB 102.3 MB
Events in quadrant A3,017,919707,071
Events in quadrant B3,366,061730,618
Events in quadrant C3,101,706698,772
Events in quadrant D4,141,337660,912

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131
B0130
C0142
D0131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01342
B01342
C01355
D01344

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013459162
B014398139
C013656150
D016948273

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6453150.232450%
B6462701.083256%
C6460691.068111%
D64461662.575240%

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 7787 6465 0 0 0.00% 0.00%
B 7787 6473 19 19 0.24% 0.29%
C 7787 6469 0 0 0.00% 0.00%
D 7786 6459 104 104 1.34% 1.61%

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 13 254 11218 66.68 782 767 156.7
A 3 137 6676 37.7 782 767 156.7
A 0 226 6627 37.39 782 767 156.7
B 3 64 118642 799.08 786 767 147.5
B 0 189 116827 786.78 786 767 147.5
B 0 230 28181 185.84 786 767 147.5
C 14 238 122622 694.24 756 763 175.5
C 7 247 24651 136.09 756 763 175.5
C 13 61 5378 26.29 756 763 175.5
D 1 52 707505 3962.81 744 724 178.4
D 9 85 573447 3211.16 744 724 178.4
D 2 234 26040 141.94 744 724 178.4

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