ASTROSAT CZTI

Data Quality Report

Orbit 24070

Creation date: 2024-06-27T19:01:45.501879
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/AS1A07_165T01_9000003558_24070cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24070cztM0_level2_quad_clean.evt
Size (bytes)470,142,720138,144,960
Size448.4 MB 131.7 MB
Events in quadrant A3,159,214950,903
Events in quadrant B3,191,504970,386
Events in quadrant C3,449,079930,617
Events in quadrant D4,028,407910,344

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130931
B0131011
C0140801
D0162411

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6040300.496689%
B6039350.579566%
C60391252.069879%
D6040370.612583%

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 7315 6041 0 0 0.00% 0.00%
B 7314 6040 0 0 0.00% 0.00%
C 7314 6040 20 20 0.27% 0.33%
D 7315 6041 7 7 0.10% 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 3 1 13422 78.38 815 802 161.0
A 13 254 9268 52.58 815 802 161.0
A 0 226 7093 39.07 815 802 161.0
B 12 111 16239 103.96 808 790 148.6
B 11 111 14717 93.72 808 790 148.6
B 14 111 12918 81.61 808 790 148.6
C 0 239 190606 1054.16 788 794 180.1
C 14 238 128815 710.99 788 794 180.1
C 7 247 53301 291.61 788 794 180.1
D 8 195 870542 4522.85 803 781 192.3
D 1 52 80695 415.56 803 781 192.3
D 11 176 31780 161.2 803 781 192.3

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