ASTROSAT CZTI

Data Quality Report

Orbit 29107

Creation date: 2024-06-27T20:00:15.177620
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/AS1A10_063T01_9000004182_29107cztM0_level2.evt modeM0/AS1A10_063T01_9000004182_29107cztM0_level2_quad_clean.evt
Size (bytes)579,303,36066,893,760
Size552.5 MB 63.8 MB
Events in quadrant A3,502,772400,980
Events in quadrant B3,573,965406,880
Events in quadrant C4,759,666385,937
Events in quadrant D5,274,800384,796

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146662
B0147842
C0188962
D0202142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6402691.077788%
B6402831.296470%
C64011702.655835%
D64013785.905327%

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 7642 6403 0 0 0.00% 0.00%
B 7642 6403 2 2 0.03% 0.03%
C 7641 6402 0 0 0.00% 0.00%
D 7641 6402 278 278 3.64% 4.34%

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 13 254 11246 57.96 905 889 178.7
A 13 6 8482 42.49 905 889 178.7
A 3 137 8149 40.63 905 889 178.7
B 10 245 26593 155.13 892 872 165.8
B 0 190 25893 150.91 892 872 165.8
B 12 111 19703 113.58 892 872 165.8
C 3 233 1210913 6106.37 869 877 198.2
C 14 238 140617 705.19 869 877 198.2
C 2 114 15857 75.6 869 877 198.2
D 1 52 1385046 6852.56 867 848 202.0
D 8 195 485399 2398.8 867 848 202.0
D 13 104 31922 153.83 867 848 202.0

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