ASTROSAT CZTI

Data Quality Report

Orbit 43359

Creation date: 2024-06-27T22:51:00.294958
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/AS1A09_143T01_9000005870_43359cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43359cztM0_level2_quad_clean.evt
Size (bytes)309,640,32086,768,640
Size295.3 MB 82.7 MB
Events in quadrant A3,013,500581,433
Events in quadrant B2,475,225601,276
Events in quadrant C2,387,332575,956
Events in quadrant D3,190,494513,172

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120832
B0108522
C0103082
D0133252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5071691.360678%
B5071561.104319%
C507130.059160%
D50711863.667916%

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 7194 5072 53 53 0.74% 1.04%
B 7194 5072 27 27 0.38% 0.53%
C 7194 5072 0 0 0.00% 0.00%
D 7194 5071 168 168 2.34% 3.31%

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 558165 4882.72 552 541 114.2
A 15 237 238524 2083.85 552 541 114.2
A 13 248 62657 543.91 552 541 114.2
B 0 186 120369 1126.9 553 540 106.3
B 0 189 92394 863.81 553 540 106.3
B 5 172 52787 491.34 553 540 106.3
C 15 214 210826 1684.54 537 539 124.8
C 3 233 58911 467.6 537 539 124.8
C 7 220 15082 116.5 537 539 124.8
D 12 233 618396 4835.97 525 511 127.8
D 1 52 362174 2830.61 525 511 127.8
D 13 249 69668 541.27 525 511 127.8

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