ASTROSAT CZTI

Data Quality Report

Orbit 02999

Creation date: 2024-06-27T14:23:15.937325
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_238T05_9000000418_02999cztM0_level2.evt modeM0/AS1G05_238T05_9000000418_02999cztM0_level2_quad_clean.evt
Size (bytes)460,195,20054,930,240
Size438.9 MB 52.4 MB
Events in quadrant A5,139,959315,170
Events in quadrant B3,262,972339,798
Events in quadrant C2,842,469330,430
Events in quadrant D2,357,174331,402

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0187423
B0130492
C0119402
D0107422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A493259512.064071%
B4932420.851582%
C49321452.939984%
D4932330.669100%

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 7087 4933 495 495 6.98% 10.03%
B 7087 4933 25 25 0.35% 0.51%
C 7087 4933 120 120 1.69% 2.43%
D 7087 4933 28 28 0.40% 0.57%

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 9 2885873 28554.97 494 483 101.0
A 14 249 284243 2808.2 494 483 101.0
A 8 15 27789 270.23 494 483 101.0
B 8 3 1023874 10053.58 527 514 101.8
B 2 249 60300 587.34 527 514 101.8
B 3 226 45427 441.23 527 514 101.8
C 0 219 706727 5932.73 504 507 119.0
C 6 80 63325 527.71 504 507 119.0
C 1 192 60024 499.98 504 507 119.0
D 7 80 114888 921.91 506 490 124.1
D 13 239 76689 614.07 506 490 124.1
D 2 152 60650 484.82 506 490 124.1

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