ASTROSAT CZTI

Data Quality Report

Orbit 30514

Creation date: 2024-06-27T20:16:17.751171
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/AS1C05_019T04_9000004388_30514cztM0_level2.evt modeM0/AS1C05_019T04_9000004388_30514cztM0_level2_quad_clean.evt
Size (bytes)499,893,120120,985,920
Size476.7 MB 115.4 MB
Events in quadrant A2,962,627837,057
Events in quadrant B4,781,244829,045
Events in quadrant C3,105,209814,121
Events in quadrant D3,905,685787,587

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123061
B0179681
C0126311
D0153901

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56751382.431718%
B56761853.259338%
C56762173.823115%
D56762804.933051%

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 6935 5676 19 19 0.27% 0.33%
B 6936 5677 11 11 0.16% 0.19%
C 6936 5677 10 10 0.14% 0.18%
D 6936 5677 169 169 2.44% 2.98%

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 12 96 81543 555.98 741 728 145.4
A 8 192 12280 79.47 741 728 145.4
A 13 254 10370 66.33 741 728 145.4
B 6 159 1734646 12868.9 728 712 134.7
B 0 155 87842 646.66 728 712 134.7
B 4 171 36415 264.98 728 712 134.7
C 14 238 135846 824.6 719 725 163.9
C 3 233 64931 391.83 719 725 163.9
C 10 22 36004 215.3 719 725 163.9
D 13 249 287668 1703.3 721 705 168.5
D 12 218 274781 1626.8 721 705 168.5
D 8 195 261054 1545.33 721 705 168.5

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