ASTROSAT CZTI

Data Quality Report

Orbit 38138

Creation date: 2024-06-27T21:48:53.179914
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/AS1C07_001T12_9000005366_38138cztM0_level2.fits modeM0/AS1C07_001T12_9000005366_38138cztM0_level2_quad_clean.evt
Size (bytes)304,130,88092,977,920
Size290.0 MB 88.7 MB
Events in quadrant A2,781,754630,923
Events in quadrant B2,670,840634,030
Events in quadrant C2,629,864605,343
Events in quadrant D2,746,679559,651

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118083
B0117162
C0112292
D0120142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5500110.200000%
B5500340.618182%
C550050.090909%
D5500340.618182%

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 7083 5501 4 4 0.06% 0.07%
B 7083 5501 21 21 0.30% 0.38%
C 7083 5501 4 4 0.06% 0.07%
D 7083 5501 26 26 0.37% 0.47%

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 373681 3005.97 615 602 124.1
A 12 189 13163 101.21 615 602 124.1
A 15 223 8895 66.82 615 602 124.1
B 0 229 93506 793.36 609 593 117.1
B 5 184 41421 348.62 609 593 117.1
B 5 172 39341 330.86 609 593 117.1
C 15 214 230354 1633.09 601 605 140.7
C 14 254 14361 97.78 601 605 140.7
C 0 10 12603 85.28 601 605 140.7
D 12 235 102269 695.66 599 582 146.2
D 12 233 85608 581.68 599 582 146.2
D 13 249 67026 454.55 599 582 146.2

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