ASTROSAT CZTI

Data Quality Report

Orbit 03045

Creation date: 2024-06-27T14:23:55.450014
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_237T02_9000000422_03045cztM0_level2.evt modeM0/AS1G05_237T02_9000000422_03045cztM0_level2_quad_clean.evt
Size (bytes)317,010,24077,912,640
Size302.3 MB 74.3 MB
Events in quadrant A2,278,492490,854
Events in quadrant B2,270,511494,831
Events in quadrant C2,155,034513,656
Events in quadrant D2,546,908500,939

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261
B0250
C0272
D0282

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108503
B0107132
C0103962
D0115272

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5127260.507119%
B5127200.390092%
C512740.078018%
D5127420.819193%

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 7282 5128 17 17 0.23% 0.33%
B 7282 5128 10 10 0.14% 0.20%
C 7282 5128 3 3 0.04% 0.06%
D 7282 5128 41 41 0.56% 0.80%

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 14 249 179489 1688.45 519 507 106.0
A 12 247 64328 602.06 519 507 106.0
A 3 1 17558 160.85 519 507 106.0
B 7 252 76654 738.91 532 519 103.0
B 0 219 43530 417.43 532 519 103.0
B 0 230 28787 274.35 532 519 103.0
C 6 80 47145 385.4 521 522 121.0
C 4 207 22592 182.43 521 522 121.0
C 12 206 12727 100.89 521 522 121.0
D 2 152 275313 2188.73 511 497 125.6
D 13 114 161837 1284.97 511 497 125.6
D 13 70 39630 311.67 511 497 125.6

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