ASTROSAT CZTI

Data Quality Report

Orbit 10083

Creation date: 2024-06-27T15:54:49.456492
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/AS1G07_014T01_9000001450_10083cztM0_level2.evt modeM0/AS1G07_014T01_9000001450_10083cztM0_level2_quad_clean.evt
Size (bytes)559,929,60096,664,320
Size534.0 MB 92.2 MB
Events in quadrant A3,659,408598,280
Events in quadrant B3,843,064606,845
Events in quadrant C3,602,495623,470
Events in quadrant D5,291,138525,017

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03492418161
B03558218558
C03498518223
D04450523740

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0352178
B0351184
C0352182
D0352176

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02318
B02214
C02316
D02315

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8281430.519261%
B8268580.701500%
C8278430.519449%
D80294996.214971%

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 19539 9297 0 0 0.00% 0.00%
B 19539 9288 4 4 0.02% 0.04%
C 19539 9274 0 0 0.00% 0.00%
D 19539 9028 442 442 2.26% 4.90%

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 0 8 30808 157.4 933 912 189.9
A 8 5 15545 77.04 933 912 189.9
A 0 226 8539 40.16 933 912 189.9
B 0 214 94230 522.28 937 913 178.7
B 4 239 44207 242.31 937 913 178.7
B 0 219 33573 182.79 937 913 178.7
C 14 234 21088 94.88 915 918 212.6
C 14 67 8926 37.67 915 918 212.6
C 13 61 6900 28.14 915 918 212.6
D 1 52 1218184 5759.89 849 824 211.4
D 8 195 302446 1427.11 849 824 211.4
D 10 199 171391 807.03 849 824 211.4

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