ASTROSAT CZTI

Data Quality Report

Orbit 04728

Creation date: 2024-06-27T14:46:07.297151
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/AS1G05_192T01_9000000594_04728cztM0_level2.evt modeM0/AS1G05_192T01_9000000594_04728cztM0_level2_quad_clean.evt
Size (bytes)579,078,72073,258,560
Size552.3 MB 69.9 MB
Events in quadrant A3,160,195460,598
Events in quadrant B3,301,684468,102
Events in quadrant C7,215,309401,912
Events in quadrant D3,421,222435,542

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137702
B0140401
C0257651
D0148041

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64791422.191696%
B6479821.265627%
C6479123819.107887%
D64791662.562124%

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 7429 6479 67 67 0.90% 1.03%
B 7429 6479 0 0 0.00% 0.00%
C 7429 6479 1030 1030 13.86% 15.90%
D 7429 6480 67 67 0.90% 1.03%

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 0 118 173795 1113.37 756 739 155.4
A 8 15 36368 229.22 756 739 155.4
A 0 226 22382 139.24 756 739 155.4
B 15 204 117132 782.24 766 747 148.8
B 14 167 80900 538.72 766 747 148.8
B 4 80 67761 450.41 766 747 148.8
C 14 48 3573715 22224.07 692 694 160.8
C 8 208 909443 5652.39 692 694 160.8
C 8 128 16844 100.45 692 694 160.8
D 13 235 233786 1309.9 732 709 177.9
D 2 136 158004 884.01 732 709 177.9
D 13 137 152687 854.12 732 709 177.9

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