ASTROSAT CZTI

Data Quality Report

Orbit 07652

Creation date: 2024-06-27T15:22:16.922155
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/AS1G06_124T01_9000001054_07652cztM0_level2.evt modeM0/AS1G06_124T01_9000001054_07652cztM0_level2_quad_clean.evt
Size (bytes)801,694,080150,039,360
Size764.6 MB 143.1 MB
Events in quadrant A5,570,222930,266
Events in quadrant B5,818,751948,276
Events in quadrant C6,543,174931,262
Events in quadrant D5,527,916898,175

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02460
B02460
C02460
D02460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0247434
B0252263
C0273253
D0250583

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12091760.628567%
B120911241.025556%
C120911541.273675%
D12091840.694732%

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 13996 12093 0 0 0.00% 0.00%
B 13996 12093 33 33 0.24% 0.27%
C 13996 12093 78 78 0.56% 0.65%
D 13996 12093 23 23 0.16% 0.19%

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 13 248 71176 239.36 1427 1393 291.5
A 0 226 13293 40.82 1427 1393 291.5
A 12 194 12849 39.29 1427 1393 291.5
B 4 81 208248 749.63 1433 1397 275.9
B 12 111 30079 103.94 1433 1397 275.9
B 0 214 25826 88.53 1433 1397 275.9
C 9 68 1036668 3194.23 1396 1404 324.1
C 8 208 45400 135.75 1396 1404 324.1
C 13 61 10630 28.47 1396 1404 324.1
D 2 14 81364 234.18 1397 1356 341.7
D 2 152 49607 141.23 1397 1356 341.7
D 13 238 31596 88.51 1397 1356 341.7

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