ASTROSAT CZTI

Data Quality Report

Orbit 05733

Creation date: 2024-06-27T14:58:29.131953
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/AS1A02_150T01_9000000738_05733cztM0_level2.evt modeM0/AS1A02_150T01_9000000738_05733cztM0_level2_quad_clean.evt
Size (bytes)481,412,16074,704,320
Size459.1 MB 71.2 MB
Events in quadrant A3,310,951449,953
Events in quadrant B3,592,082458,198
Events in quadrant C3,277,706456,974
Events in quadrant D3,949,308435,406

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014177128
B014574120
C014188107
D016149156

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66132343.538485%
B66152313.492063%
C66212053.096209%
D66072583.904949%

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 9018 6667 0 0 0.00% 0.00%
B 9018 6668 0 0 0.00% 0.00%
C 9018 6668 0 0 0.00% 0.00%
D 9018 6667 48 48 0.53% 0.72%

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 10188 53.14 858 839 175.9
A 12 194 8494 43.51 858 839 175.9
A 0 226 8290 42.35 858 839 175.9
B 5 172 95254 562.54 866 847 167.8
B 15 204 81358 479.74 866 847 167.8
B 11 51 40439 235.91 866 847 167.8
C 13 61 6636 29.76 837 842 194.7
C 9 16 5301 22.91 837 842 194.7
C 12 4 3247 12.35 837 842 194.7
D 1 20 440354 2146.67 837 812 204.8
D 12 233 83739 405.0 837 812 204.8
D 2 206 82545 399.17 837 812 204.8

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