ASTROSAT CZTI

Data Quality Report

Orbit 42333

Creation date: 2024-06-27T22:39:06.385118
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_9000005796_42333cztM0_level2.fits modeM0/AS1C07_001T10_9000005796_42333cztM0_level2_quad_clean.evt
Size (bytes)329,417,28088,021,440
Size314.2 MB 83.9 MB
Events in quadrant A2,994,335584,373
Events in quadrant B2,553,491589,132
Events in quadrant C2,424,633581,588
Events in quadrant D3,800,813531,854

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122763
B0115542
C0108902
D0151502

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5402250.462792%
B5402530.981118%
C540250.092558%
D54021592.943354%

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 7016 5403 14 14 0.20% 0.26%
B 7016 5403 30 30 0.43% 0.56%
C 7016 5403 1 1 0.01% 0.02%
D 7016 5403 164 164 2.34% 3.04%

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 592095 5076.89 564 553 116.5
A 15 223 122709 1048.4 564 553 116.5
A 13 248 41529 351.68 564 553 116.5
B 3 112 90321 830.4 561 547 108.1
B 5 172 85485 785.67 561 547 108.1
B 0 245 62207 570.35 561 547 108.1
C 15 214 223073 1701.55 557 559 130.8
C 15 111 12290 89.71 557 559 130.8
C 7 247 8903 63.81 557 559 130.8
D 10 204 482238 3589.6 551 536 134.2
D 12 233 359503 2674.99 551 536 134.2
D 12 218 276078 2053.31 551 536 134.2

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