ASTROSAT CZTI

Data Quality Report

Orbit 48417

Creation date: 2024-09-10T12:40:22.280452
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/AS1A13_029T01_9000006426_48417cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48417cztM0_level2_quad_clean.evt
Size (bytes)391,000,32099,002,880
Size372.9 MB 94.4 MB
Events in quadrant A6,124,679654,079
Events in quadrant B2,653,281685,633
Events in quadrant C2,591,188653,700
Events in quadrant D2,648,736594,628

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225111
B0120101
C0120013
D0121701

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58631763.001876%
B5863290.494627%
C5862120.204708%
D5863170.289954%

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 7043 5864 71 71 1.01% 1.21%
B 7043 5864 1 1 0.01% 0.02%
C 7043 5864 0 0 0.00% 0.00%
D 7043 5864 9 9 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 10 83 3356064 24644.56 657 643 136.2
A 13 248 168452 1232.51 657 643 136.2
A 13 6 31264 224.9 657 643 136.2
B 12 16 21123 158.6 658 639 129.2
B 12 111 16314 121.36 658 639 129.2
B 10 14 16016 119.05 658 639 129.2
C 15 208 16976 105.35 652 657 154.9
C 1 16 16149 100.01 652 657 154.9
C 12 2 11306 68.75 652 657 154.9
D 2 249 49839 297.17 655 636 165.6
D 10 199 30209 178.61 655 636 165.6
D 2 234 25584 150.68 655 636 165.6

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