ASTROSAT CZTI

Data Quality Report

Orbit 43403

Creation date: 2024-06-27T22:51:34.938026
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/AS1A12_018T01_9000005874_43403cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43403cztM0_level2_quad_clean.evt
Size (bytes)298,316,16086,247,360
Size284.5 MB 82.3 MB
Events in quadrant A3,001,178569,593
Events in quadrant B2,488,045594,799
Events in quadrant C2,462,767570,604
Events in quadrant D2,688,791515,380

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121562
B0110402
C0105992
D0118142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5152791.533385%
B5152300.582298%
C515220.038820%
D5152731.416925%

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 7274 5153 55 55 0.76% 1.07%
B 7274 5153 12 12 0.16% 0.23%
C 7274 5153 0 0 0.00% 0.00%
D 7274 5153 63 63 0.87% 1.22%

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 560310 4990.34 546 536 112.2
A 15 237 227858 2026.56 546 536 112.2
A 13 248 80539 713.22 546 536 112.2
B 0 189 167710 1571.99 552 537 106.3
B 0 186 64028 597.03 552 537 106.3
B 0 190 35587 329.59 552 537 106.3
C 15 214 213733 1704.57 538 539 125.1
C 3 233 127717 1016.84 538 539 125.1
C 15 159 23408 182.85 538 539 125.1
D 13 249 244039 1894.44 529 513 128.5
D 1 52 223740 1736.53 529 513 128.5
D 12 6 105097 813.58 529 513 128.5

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