ASTROSAT CZTI

Data Quality Report

Orbit 09715

Creation date: 2024-06-27T15:49:42.264993
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/AS1A03_029T01_9000001384_09715cztM0_level2.evt modeM0/AS1A03_029T01_9000001384_09715cztM0_level2_quad_clean.evt
Size (bytes)516,764,16094,924,800
Size492.8 MB 90.5 MB
Events in quadrant A3,592,393591,038
Events in quadrant B3,681,082599,284
Events in quadrant C3,725,080590,325
Events in quadrant D4,139,679569,862

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01573380
B015837109
C016242106
D017422128

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0141
C0141
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01582
B01580
C01582
D01582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75382463.263465%
B75232593.442775%
C75252263.003322%
D75262433.228807%

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 9105 7571 0 0 0.00% 0.00%
B 9105 7571 0 0 0.00% 0.00%
C 9105 7569 0 0 0.00% 0.00%
D 9105 7564 9 9 0.10% 0.12%

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 0 226 8560 40.03 932 910 191.1
A 4 2 8184 38.06 932 910 191.1
A 12 194 7689 35.47 932 910 191.1
B 0 214 25042 135.05 932 910 178.7
B 12 111 19951 106.56 932 910 178.7
B 11 111 16267 85.94 932 910 178.7
C 9 68 150688 711.39 910 913 210.5
C 14 234 22382 101.97 910 913 210.5
C 13 61 6859 28.24 910 913 210.5
D 1 52 516106 2363.28 903 882 218.0
D 12 233 143637 654.8 903 882 218.0
D 2 234 22896 100.98 903 882 218.0

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