ASTROSAT CZTI

Data Quality Report

Orbit 17319

Creation date: 2024-06-27T17:34:56.343971
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_010T02_9000002556_17319cztM0_level2.evt modeM0/AS1A05_010T02_9000002556_17319cztM0_level2_quad_clean.evt
Size (bytes)842,195,520146,502,720
Size803.2 MB 139.7 MB
Events in quadrant A5,978,730904,890
Events in quadrant B6,151,961905,159
Events in quadrant C6,156,769859,980
Events in quadrant D6,331,276862,067

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0268303
B0269983
C0270973
D0280803

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02660
B02660
C02660
D02660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A130891541.176560%
B130902031.550802%
C130902702.062643%
D130901581.207028%

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 14734 13092 0 0 0.00% 0.00%
B 14735 13093 2 2 0.01% 0.02%
C 14735 13092 23 23 0.16% 0.18%
D 14735 13093 19 19 0.13% 0.15%

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 0 226 13565 38.49 1554 1520 313.0
A 3 137 12295 34.43 1554 1520 313.0
A 12 194 11006 30.31 1554 1520 313.0
B 4 173 45341 146.6 1549 1506 299.0
B 12 111 37474 120.29 1549 1506 299.0
B 11 111 33023 105.4 1549 1506 299.0
C 14 238 227542 643.8 1490 1500 351.1
C 14 128 76709 214.21 1490 1500 351.1
C 3 233 28853 77.91 1490 1500 351.1
D 5 222 327445 887.52 1510 1469 367.3
D 1 52 237037 641.37 1510 1469 367.3
D 2 152 58795 156.08 1510 1469 367.3

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