ASTROSAT CZTI

Data Quality Report

Orbit 10151

Creation date: 2024-06-27T15:55:40.038279
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/AS1A03_039T01_9000001462_10151cztM0_level2.evt modeM0/AS1A03_039T01_9000001462_10151cztM0_level2_quad_clean.evt
Size (bytes)799,882,56099,768,960
Size762.8 MB 95.1 MB
Events in quadrant A3,463,859670,146
Events in quadrant B3,938,260672,512
Events in quadrant C3,243,582676,079
Events in quadrant D13,071,846480,411

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156093
B0168902
C0152512
D04395935

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7497390.520208%
B74971221.627318%
C7497210.280112%
D7492364448.638548%

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 7812 7498 2 2 0.03% 0.03%
B 7812 7498 48 48 0.61% 0.64%
C 7812 7498 0 0 0.00% 0.00%
D 7811 7495 3538 3538 45.30% 47.20%

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 15 174 90926 512.14 856 839 175.9
A 8 15 62231 349.01 856 839 175.9
A 0 226 7816 39.66 856 839 175.9
B 4 239 301664 1830.31 856 835 164.4
B 0 219 132731 802.48 856 835 164.4
B 4 81 68493 411.65 856 835 164.4
C 14 67 14844 72.66 827 830 192.9
C 13 61 6345 28.6 827 830 192.9
C 14 234 2712 9.76 827 830 192.9
D 1 52 9030594 56074.44 663 641 161.0
D 8 195 422005 2616.6 663 641 161.0
D 12 110 334601 2073.83 663 641 161.0

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