ASTROSAT CZTI

Data Quality Report

Orbit 20221207_T05_064T01_9000005416_level2

Creation date: 2022-12-14T19:51:52.171566
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/AS1T05_064T01_9000005416cztM0_level2.fits modeM0/AS1T05_064T01_9000005416cztM0_level2_quad_clean.evt
Size (bytes)2,856,576,9603,218,618,880
Size2.7 GB 3.0 GB
Events in quadrant A17,220,45220,203,791
Events in quadrant B16,606,20820,187,136
Events in quadrant C17,085,68219,256,406
Events in quadrant D13,948,01616,198,409

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064520
B064520
C064520
D064520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012090
B012090
C012090
D012090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07136600
B06703680
C06766550
D011035030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A31596930600.968449%
B31596529600.936813%
C31596423880.755782%
D3159663196310.115962%

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 436509 315936 0 0 0.00% 0.00%
B 436508 315896 0 0 0.00% 0.00%
C 436509 315912 0 0 0.00% 0.00%
D 436509 315397 0 0 0.00% 0.00%

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 9 19 14258 8.96 4501 4228 1119.5
A 7 110 14040 8.76 4501 4228 1119.5
A 0 29 13753 8.51 4501 4228 1119.5
B 2 9 14436 12.15 4396 4198 842.6
B 3 80 13047 10.5 4396 4198 842.6
B 5 255 11780 9.0 4396 4198 842.6
C 1 81 14471 8.98 4518 4248 1138.1
C 1 80 13786 8.38 4518 4248 1138.1
C 3 202 13439 8.08 4518 4248 1138.1
D 7 3 10290 6.32 3997 3648 1050.9
D 4 160 10171 6.21 3997 3648 1050.9
D 10 189 10101 6.14 3997 3648 1050.9

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