ASTROSAT CZTI

Data Quality Report

Orbit 42793

Creation date: 2024-06-27T22:44:17.812416
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/AS1A05_013T01_9000005822_42793cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42793cztM0_level2_quad_clean.evt
Size (bytes)334,310,40088,588,800
Size318.8 MB 84.5 MB
Events in quadrant A2,829,765613,882
Events in quadrant B2,676,286611,452
Events in quadrant C2,775,337593,301
Events in quadrant D3,707,444516,587

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112702
B0110252
C0112282
D0144132

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4956120.242131%
B49561272.562550%
C4956400.807103%
D49563587.223567%

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 7049 4957 5 5 0.07% 0.10%
B 7049 4957 109 109 1.55% 2.20%
C 7049 4957 39 39 0.55% 0.79%
D 7049 4957 332 332 4.71% 6.70%

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 10 83 524210 4446.04 580 569 117.8
A 2 79 50942 427.7 580 569 117.8
A 13 254 7184 56.17 580 569 117.8
B 0 229 343037 3125.19 569 554 109.6
B 12 0 57466 519.33 569 554 109.6
B 5 255 14974 131.58 569 554 109.6
C 14 254 286594 2165.56 562 565 132.1
C 15 214 214845 1622.34 562 565 132.1
C 10 34 65776 493.72 562 565 132.1
D 2 249 1472471 11008.66 546 531 133.7
D 1 52 52906 391.71 546 531 133.7
D 5 70 39544 291.78 546 531 133.7

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