ASTROSAT CZTI

Data Quality Report

Orbit 04104

Creation date: 2024-06-27T14:37:28.033449
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/AS1G05_191T01_9000000524_04104cztM0_level2.evt modeM0/AS1G05_191T01_9000000524_04104cztM0_level2_quad_clean.evt
Size (bytes)940,034,880164,603,520
Size896.5 MB 157.0 MB
Events in quadrant A6,804,6661,016,495
Events in quadrant B7,599,0691,010,415
Events in quadrant C6,474,4521,005,476
Events in quadrant D6,627,507970,383

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0293885
B0315864
C0290794
D0298924

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02920
B02920
C02920
D02920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A142153092.173760%
B142153932.764685%
C142152021.421034%
D142152481.744636%

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 15850 14216 0 0 0.00% 0.00%
B 15850 14216 92 92 0.58% 0.65%
C 15850 14216 0 0 0.00% 0.00%
D 15850 14216 17 17 0.11% 0.12%

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 0 199 150340 428.59 1697 1660 346.9
A 8 15 60455 169.48 1697 1660 346.9
A 0 50 50059 139.52 1697 1660 346.9
B 14 167 766102 2316.13 1710 1669 330.0
B 15 204 121910 364.31 1710 1669 330.0
B 12 111 30779 88.2 1710 1669 330.0
C 13 61 13596 31.02 1653 1665 384.6
C 8 128 7224 14.45 1653 1665 384.6
C 12 4 6320 12.1 1653 1665 384.6
D 10 172 177851 441.96 1643 1596 398.8
D 2 14 90569 223.1 1643 1596 398.8
D 13 239 81352 199.99 1643 1596 398.8

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