ASTROSAT CZTI

Data Quality Report

Orbit 13205

Creation date: 2024-06-27T16:37:41.843748
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/AS1A04_104T04_9000001966_13205cztM0_level2.evt modeM0/AS1A04_104T04_9000001966_13205cztM0_level2_quad_clean.evt
Size (bytes)527,155,20087,088,320
Size502.7 MB 83.1 MB
Events in quadrant A3,569,375529,193
Events in quadrant B4,591,118539,517
Events in quadrant C3,255,672549,963
Events in quadrant D4,061,536518,852

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154462
B0182721
C0147241
D0165361

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71702663.709902%
B71705888.200837%
C71701351.882845%
D71701692.357043%

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 7261 7172 50 50 0.69% 0.70%
B 7261 7172 253 253 3.48% 3.53%
C 7261 7172 0 0 0.00% 0.00%
D 7261 7172 12 12 0.17% 0.17%

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 12 96 208968 1183.0 848 827 175.9
A 4 2 43655 243.42 848 827 175.9
A 8 15 21363 116.72 848 827 175.9
B 4 239 1058041 6527.71 832 811 162.0
B 3 64 107249 657.19 832 811 162.0
B 0 214 41900 253.7 832 811 162.0
C 15 208 7094 32.52 832 834 192.5
C 13 61 6030 26.99 832 834 192.5
C 14 234 4785 20.52 832 834 192.5
D 8 195 571496 2839.3 828 803 201.0
D 1 52 222660 1103.78 828 803 201.0
D 10 157 61576 302.36 828 803 201.0

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