ASTROSAT CZTI

Data Quality Report

Orbit 06036

Creation date: 2024-06-27T15:02:01.385646
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/AS1A02_090T01_9000000778_06036cztM0_level2.evt modeM0/AS1A02_090T01_9000000778_06036cztM0_level2_quad_clean.evt
Size (bytes)493,899,84098,029,440
Size471.0 MB 93.5 MB
Events in quadrant A4,843,161637,356
Events in quadrant B4,072,077646,316
Events in quadrant C2,837,686650,412
Events in quadrant D2,798,264615,923

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186232
B0159991
C0123111
D0125241

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59951242.068390%
B59952944.904087%
C5995110.183486%
D5995120.200167%

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 7300 5996 5 5 0.07% 0.08%
B 7300 5996 228 228 3.12% 3.80%
C 7300 5996 0 0 0.00% 0.00%
D 7300 5996 4 4 0.05% 0.07%

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 34 1980226 13211.13 730 715 149.8
A 8 15 30003 195.46 730 715 149.8
A 14 111 18620 119.49 730 715 149.8
B 3 64 1090970 7801.63 736 722 139.7
B 15 204 25996 180.86 736 722 139.7
B 0 219 25190 175.09 736 722 139.7
C 14 67 22463 130.11 718 728 167.0
C 1 16 9524 52.66 718 728 167.0
C 13 61 5906 31.0 718 728 167.0
D 8 195 47722 269.11 709 689 174.8
D 2 33 26728 148.99 709 689 174.8
D 2 136 25033 139.29 709 689 174.8

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