ASTROSAT CZTI

Data Quality Report

Orbit 14069

Creation date: 2024-06-27T16:49:57.981608
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/AS1G08_055T01_9000002076_14069cztM0_level2.evt modeM0/AS1G08_055T01_9000002076_14069cztM0_level2_quad_clean.evt
Size (bytes)485,360,640130,916,160
Size462.9 MB 124.9 MB
Events in quadrant A3,111,283917,487
Events in quadrant B3,406,020925,474
Events in quadrant C3,052,373878,891
Events in quadrant D4,723,720825,607

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130442
B0138861
C0129111
D0181401

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5981570.953018%
B59811001.671961%
C5981490.819261%
D59812614.363819%

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 7342 5983 0 0 0.00% 0.00%
B 7342 5983 26 26 0.35% 0.43%
C 7342 5983 8 8 0.11% 0.13%
D 7342 5983 212 212 2.89% 3.54%

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 12 189 102990 664.57 775 764 153.8
A 8 15 18788 117.17 775 764 153.8
A 0 226 7051 40.87 775 764 153.8
B 4 48 188748 1331.03 771 757 141.2
B 3 209 57814 403.98 771 757 141.2
B 0 219 46588 324.5 771 757 141.2
C 0 207 147753 891.2 732 736 165.0
C 3 233 49373 294.83 732 736 165.0
C 13 61 5428 28.44 732 736 165.0
D 1 52 656846 3898.86 713 697 168.3
D 10 172 426963 2532.89 713 697 168.3
D 13 104 291261 1726.54 713 697 168.3

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