ASTROSAT CZTI

Data Quality Report

Orbit 05030

Creation date: 2024-06-27T14:50:24.573761
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/AS1G05_250T02_9000000638_05030cztM0_level2.evt modeM0/AS1G05_250T02_9000000638_05030cztM0_level2_quad_clean.evt
Size (bytes)875,093,760152,164,800
Size834.6 MB 145.1 MB
Events in quadrant A6,050,863930,679
Events in quadrant B6,163,813934,797
Events in quadrant C5,671,419949,004
Events in quadrant D7,739,980899,756

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02620
B02620
C02620
D02620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0276224
B0274423
C0264163
D0321553

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129401010.780526%
B129401010.780526%
C12940370.285935%
D129402932.264297%

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 14105 12942 46 46 0.33% 0.36%
B 14105 12942 9 9 0.06% 0.07%
C 14105 12942 0 0 0.00% 0.00%
D 14105 12942 131 131 0.93% 1.01%

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 15 234 155490 514.23 1477 1447 299.6
A 0 50 141480 467.46 1477 1447 299.6
A 15 174 54890 178.41 1477 1447 299.6
B 4 48 121887 420.92 1488 1455 286.1
B 0 219 89938 309.25 1488 1455 286.1
B 15 204 76376 261.85 1488 1455 286.1
C 8 128 15314 41.45 1443 1451 334.5
C 9 54 13446 35.86 1443 1451 334.5
C 13 61 11852 31.1 1443 1451 334.5
D 12 227 778261 2226.75 1433 1391 348.9
D 13 53 466230 1332.37 1433 1391 348.9
D 13 235 372226 1062.93 1433 1391 348.9

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