ASTROSAT CZTI

Data Quality Report

Orbit 28124

Creation date: 2024-06-27T19:48:20.401108
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_090T14_9000004064_28124cztM0_level2.evt modeM0/AS1A10_090T14_9000004064_28124cztM0_level2_quad_clean.evt
Size (bytes)497,111,04070,940,160
Size474.1 MB 67.7 MB
Events in quadrant A3,252,309446,483
Events in quadrant B3,440,653450,538
Events in quadrant C3,232,727423,859
Events in quadrant D4,716,494401,997

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132730
B0139300
C0132590
D0179670

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6092570.935653%
B6093751.230921%
C6093851.395043%
D60933645.974069%

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 7427 6092 0 0 0.00% 0.00%
B 7428 6093 4 4 0.05% 0.07%
C 7428 6094 0 0 0.00% 0.00%
D 7428 6094 309 309 4.16% 5.07%

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 8810 48.27 842 831 165.3
A 3 137 7433 39.94 842 831 165.3
A 0 226 7169 38.34 842 831 165.3
B 15 32 127541 815.46 837 820 155.4
B 5 255 24197 150.43 837 820 155.4
B 12 111 18289 112.41 837 820 155.4
C 14 238 131358 714.56 791 796 182.7
C 2 16 8937 44.56 791 796 182.7
C 3 233 7129 34.66 791 796 182.7
D 12 79 550946 2993.8 780 761 183.8
D 13 168 526997 2863.49 780 761 183.8
D 1 52 337922 1834.64 780 761 183.8

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