ASTROSAT CZTI

Data Quality Report

Orbit 35048

Creation date: 2024-06-27T21:08:31.834012
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/AS1A10_057T01_9000005022_35048cztM0_level2.evt modeM0/AS1A10_057T01_9000005022_35048cztM0_level2_quad_clean.evt
Size (bytes)459,489,60066,669,120
Size438.2 MB 63.6 MB
Events in quadrant A2,480,607424,953
Events in quadrant B2,880,258424,509
Events in quadrant C3,244,824417,943
Events in quadrant D4,948,492378,088

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109123
B0121522
C0127842
D0184162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A532150.093967%
B5321981.841759%
C53211442.706258%
D53213346.277016%

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 7025 5322 0 0 0.00% 0.00%
B 7025 5322 63 63 0.90% 1.18%
C 7025 5322 157 157 2.23% 2.95%
D 7025 5322 329 329 4.68% 6.18%

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 75584 609.4 611 599 123.0
A 7 3 18289 143.77 611 599 123.0
A 10 255 13104 101.63 611 599 123.0
B 5 172 166280 1415.71 605 588 117.0
B 0 190 123465 1049.89 605 588 117.0
B 5 200 121623 1034.15 605 588 117.0
C 3 233 531946 3829.72 596 600 138.7
C 15 214 220868 1587.6 596 600 138.7
C 0 10 138413 993.3 596 600 138.7
D 8 195 1061317 7497.04 578 563 141.5
D 12 227 554014 3911.6 578 563 141.5
D 13 249 285090 2010.94 578 563 141.5

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