ASTROSAT CZTI

Data Quality Report

Orbit 08386

Creation date: 2024-06-27T15:32:08.052845
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/AS1G07_084T03_9000001174_08386cztM0_level2.evt modeM0/AS1G07_084T03_9000001174_08386cztM0_level2_quad_clean.evt
Size (bytes)326,900,16093,594,240
Size311.8 MB 89.3 MB
Events in quadrant A2,309,734617,267
Events in quadrant B2,402,410626,857
Events in quadrant C2,323,673619,808
Events in quadrant D2,509,423606,108

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106122
B0107111
C0106431
D0112571

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5212280.537222%
B5212390.748273%
C5212390.748273%
D5212581.112817%

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 5572 5213 0 0 0.00% 0.00%
B 5572 5213 0 0 0.00% 0.00%
C 5572 5213 2 2 0.04% 0.04%
D 5572 5213 18 18 0.32% 0.35%

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 5540 40.0 599 584 123.9
A 12 194 5438 39.18 599 584 123.9
A 0 128 3244 21.47 599 584 123.9
B 12 0 24164 202.51 603 588 116.4
B 0 214 18099 150.42 603 588 116.4
B 4 48 13945 114.73 603 588 116.4
C 1 16 16748 118.33 585 585 136.6
C 8 128 9171 62.86 585 585 136.6
C 9 68 6335 42.1 585 585 136.6
D 12 233 170972 1108.03 580 566 153.8
D 1 52 46431 298.23 580 566 153.8
D 2 234 19549 123.43 580 566 153.8

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