ASTROSAT CZTI

Data Quality Report

Orbit 40242

Creation date: 2024-06-27T22:14:02.493746
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/AS1T05_086T01_9000005534_40242cztM0_level2.fits modeM0/AS1T05_086T01_9000005534_40242cztM0_level2_quad_clean.evt
Size (bytes)329,359,68096,004,800
Size314.1 MB 91.6 MB
Events in quadrant A3,314,807650,868
Events in quadrant B2,638,938675,538
Events in quadrant C2,621,102639,251
Events in quadrant D3,217,261582,536

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130113
B0109152
C0107542
D0130112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51331052.045587%
B5133120.233781%
C5133160.311709%
D5133921.792324%

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 7135 5134 71 71 1.00% 1.38%
B 7135 5134 5 5 0.07% 0.10%
C 7135 5134 12 12 0.17% 0.23%
D 7135 5134 76 76 1.07% 1.48%

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 496959 4145.28 589 580 119.7
A 13 248 388898 3242.86 589 580 119.7
A 2 79 58174 480.97 589 580 119.7
B 7 202 193067 1678.61 595 580 114.7
B 5 255 35920 308.19 595 580 114.7
B 0 245 23700 201.62 595 580 114.7
C 15 214 220689 1609.76 586 592 136.7
C 0 10 56924 412.0 586 592 136.7
C 10 22 33934 243.86 586 592 136.7
D 12 227 661173 4685.63 580 566 141.0
D 9 19 95624 674.24 580 566 141.0
D 12 79 67270 473.13 580 566 141.0

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