ASTROSAT CZTI

Data Quality Report

Orbit 19052

Creation date: 2024-06-27T17:58:32.183700
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/AS1A05_046T01_9000002834_19052cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19052cztM0_level2_quad_clean.evt
Size (bytes)449,530,56081,895,680
Size428.7 MB 78.1 MB
Events in quadrant A3,140,504506,554
Events in quadrant B3,551,981517,526
Events in quadrant C3,280,353500,674
Events in quadrant D3,185,676488,185

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137071
B0147171
C0139671
D0140071

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67061071.595586%
B67071632.430297%
C67071271.893544%
D6707791.177874%

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 7101 6708 0 0 0.00% 0.00%
B 7102 6709 24 24 0.34% 0.36%
C 7102 6709 1 1 0.01% 0.01%
D 7102 6709 0 0 0.00% 0.00%

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 8490 46.57 814 796 165.2
A 0 226 6873 36.78 814 796 165.2
A 3 137 6481 34.41 814 796 165.2
B 10 246 161246 1031.52 808 786 155.6
B 7 220 87478 557.3 808 786 155.6
B 3 112 54310 344.08 808 786 155.6
C 14 238 121722 653.18 785 790 185.1
C 3 233 89970 481.68 785 790 185.1
C 8 128 5852 27.34 785 790 185.1
D 7 238 144163 731.57 799 776 196.0
D 2 234 31911 158.85 799 776 196.0
D 14 226 7843 36.06 799 776 196.0

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