ASTROSAT CZTI

Data Quality Report

Orbit 13680

Creation date: 2024-06-27T16:44:27.066201
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/AS1G08_070T01_9000002028_13680cztM0_level2.evt modeM0/AS1G08_070T01_9000002028_13680cztM0_level2_quad_clean.evt
Size (bytes)507,294,72087,462,720
Size483.8 MB 83.4 MB
Events in quadrant A3,179,372562,461
Events in quadrant B3,550,580594,260
Events in quadrant C3,344,834537,060
Events in quadrant D4,855,146508,931

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131812
B0142781
C0134681
D0187161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6391971.517759%
B63911532.393992%
C6391701.095290%
D63912283.567517%

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 7381 6392 0 0 0.00% 0.00%
B 7382 6393 48 48 0.65% 0.75%
C 7381 6392 0 0 0.00% 0.00%
D 7381 6392 120 120 1.63% 1.88%

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 1 162 14335 81.06 821 805 166.9
A 0 226 7303 38.93 821 805 166.9
A 12 194 6255 32.65 821 805 166.9
B 3 64 185250 1194.99 819 803 154.3
B 0 219 135546 872.97 819 803 154.3
B 12 111 17471 107.99 819 803 154.3
C 3 233 258415 1412.81 791 798 182.3
C 13 61 5793 27.39 791 798 182.3
C 14 234 2809 11.03 791 798 182.3
D 5 222 887120 4282.29 779 766 207.0
D 13 122 473011 2281.58 779 766 207.0
D 8 195 249280 1200.66 779 766 207.0

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