ASTROSAT CZTI

Data Quality Report

Orbit 46580

Creation date: 2024-06-27T23:25:01.759199
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/AS1C07_001T10_9000006232_46580cztM0_level2.fits modeM0/AS1C07_001T10_9000006232_46580cztM0_level2_quad_clean.evt
Size (bytes)722,306,88096,589,440
Size688.8 MB 92.1 MB
Events in quadrant A6,067,528736,736
Events in quadrant B3,203,380767,806
Events in quadrant C3,729,387740,598
Events in quadrant D13,195,381193,802

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220810
B0145080
C0162460
D0439840

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69651972.828428%
B69661131.622165%
C69661522.182027%
D6966526575.581395%

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 6965 6965 8 8 0.11% 0.11%
B 6966 6966 10 10 0.14% 0.14%
C 6966 6966 105 105 1.51% 1.51%
D 6966 6966 3945 3945 56.63% 56.63%

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 3048938 19109.32 762 745 159.5
A 13 248 28776 175.73 762 745 159.5
A 15 192 18253 109.76 762 745 159.5
B 0 245 48321 318.48 761 738 149.4
B 5 255 34366 225.07 761 738 149.4
B 5 32 21125 136.45 761 738 149.4
C 14 254 768955 4431.66 746 749 173.3
C 0 207 23546 131.51 746 749 173.3
C 3 233 10079 53.82 746 749 173.3
D 13 138 6704526 53302.43 487 469 125.8
D 1 52 2646120 21034.97 487 469 125.8
D 12 233 900991 7159.85 487 469 125.8

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