ASTROSAT CZTI

Data Quality Report

Orbit 44366

Creation date: 2024-06-27T23:02:43.259010
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/AS1A13_008T06_9000005994_44366cztM0_level2.fits modeM0/AS1A13_008T06_9000005994_44366cztM0_level2_quad_clean.evt
Size (bytes)1,035,864,000201,332,160
Size987.9 MB 192.0 MB
Events in quadrant A13,189,7741,242,863
Events in quadrant B6,872,2041,418,599
Events in quadrant C6,562,5071,369,643
Events in quadrant D10,682,4901,138,514

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02740
B02740
C02740
D02740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0496506
B0295274
C0291504
D0410964

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13399170212.702440%
B133994523.373386%
C134002932.186567%
D13400140310.470149%

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 14579 13400 920 920 6.31% 6.87%
B 14579 13401 89 89 0.61% 0.66%
C 14580 13402 72 72 0.49% 0.54%
D 14580 13403 1190 1190 8.16% 8.88%

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 15 223 3240226 10746.64 1453 1422 301.4
A 10 83 2890731 9586.99 1453 1422 301.4
A 13 248 1269047 4206.09 1453 1422 301.4
B 5 172 227682 737.07 1538 1492 306.9
B 5 255 180525 583.4 1538 1492 306.9
B 0 219 132154 425.78 1538 1492 306.9
C 14 254 493947 1367.7 1517 1524 360.0
C 1 3 59416 160.79 1517 1524 360.0
C 3 233 40600 108.53 1517 1524 360.0
D 13 249 2922082 7891.93 1459 1417 370.1
D 2 249 479635 1292.19 1459 1417 370.1
D 4 221 346710 933.02 1459 1417 370.1

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