ASTROSAT CZTI

Data Quality Report

Orbit 28670

Creation date: 2024-06-27T19:54:43.671445
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/AS1A10_110T03_9000004114_28670cztM0_level2.evt modeM0/AS1A10_110T03_9000004114_28670cztM0_level2_quad_clean.evt
Size (bytes)548,231,04098,988,480
Size522.8 MB 94.4 MB
Events in quadrant A3,465,583636,325
Events in quadrant B3,608,892653,067
Events in quadrant C3,673,551611,679
Events in quadrant D5,364,001592,157

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148762
B0152912
C0153762
D0209285

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7240510.704420%
B7241741.021958%
C72412062.844911%
D72402613.604972%

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 9180 7240 0 0 0.00% 0.00%
B 9181 7241 1 1 0.01% 0.01%
C 9181 7241 0 0 0.00% 0.00%
D 9179 7239 241 241 2.63% 3.33%

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 12827 65.68 898 880 181.9
A 3 137 8838 43.75 898 880 181.9
A 0 226 7736 37.69 898 880 181.9
B 10 245 104830 606.21 893 872 171.5
B 12 111 21454 120.02 893 872 171.5
B 11 111 19253 107.18 893 872 171.5
C 14 238 185172 919.16 852 858 200.5
C 7 220 67869 334.18 852 858 200.5
C 14 254 66330 326.5 852 858 200.5
D 1 52 1708313 8345.03 853 832 204.6
D 8 195 354440 1728.2 853 832 204.6
D 2 234 27251 129.12 853 832 204.6

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