ASTROSAT CZTI

Data Quality Report

Orbit 30110

Creation date: 2024-06-27T20:11:01.283816
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/AS1C05_019T01_9000004332_30110cztM0_level2.evt modeM0/AS1C05_019T01_9000004332_30110cztM0_level2_quad_clean.evt
Size (bytes)487,592,640121,296,960
Size465.0 MB 115.7 MB
Events in quadrant A2,892,715834,941
Events in quadrant B4,677,945833,720
Events in quadrant C2,915,046793,639
Events in quadrant D3,866,268784,334

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124831
B0184241
C0125301
D0156021

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6110931.522095%
B61111582.585502%
C61111362.225495%
D61111001.636393%

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 7100 6111 0 0 0.00% 0.00%
B 7101 6112 2 2 0.03% 0.03%
C 7101 6112 0 0 0.00% 0.00%
D 7101 6112 31 31 0.44% 0.51%

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 10931 68.58 746 732 148.7
A 8 192 9412 58.37 746 732 148.7
A 3 137 7336 44.41 746 732 148.7
B 6 159 1725859 12355.43 734 717 139.6
B 0 190 58405 413.16 734 717 139.6
B 12 111 16953 116.28 734 717 139.6
C 14 238 124790 768.66 703 707 161.4
C 3 233 14582 85.95 703 707 161.4
C 2 114 13993 82.3 703 707 161.4
D 1 52 678330 4042.78 713 696 167.6
D 8 195 240662 1431.64 713 696 167.6
D 13 104 152614 906.35 713 696 167.6

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