ASTROSAT CZTI

Data Quality Report

Orbit 10627

Creation date: 2024-06-27T16:01:41.544587
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/AS1T01_191T01_9000001536_10627cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10627cztM0_level2_quad_clean.evt
Size (bytes)639,187,200109,094,400
Size609.6 MB 104.0 MB
Events in quadrant A3,956,027701,222
Events in quadrant B5,213,524680,947
Events in quadrant C4,287,502697,444
Events in quadrant D5,362,389671,678

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169143
B0207002
C0181702
D0212662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79451481.862807%
B79454675.877911%
C79451962.466960%
D79452132.680931%

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 9315 7947 0 0 0.00% 0.00%
B 9315 7947 155 155 1.66% 1.95%
C 9315 7947 76 76 0.82% 0.96%
D 9315 7947 35 35 0.38% 0.44%

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 13 251 124421 607.91 982 965 203.1
A 1 162 24713 116.94 982 965 203.1
A 0 226 8910 39.12 982 965 203.1
B 4 239 1167309 6285.36 964 940 185.6
B 0 219 85901 457.84 964 940 185.6
B 11 51 78432 417.59 964 940 185.6
C 4 254 526225 2359.41 956 966 222.6
C 14 234 11829 48.8 956 966 222.6
C 4 175 10010 40.62 956 966 222.6
D 1 52 874609 3758.56 948 923 232.5
D 2 16 587996 2525.56 948 923 232.5
D 8 195 179110 766.55 948 923 232.5

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