ASTROSAT CZTI

Data Quality Report

Orbit 39328

Creation date: 2024-06-27T22:03:16.965903
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_061T07_9000005468_39328cztM0_level2.fits modeM0/AS1A12_061T07_9000005468_39328cztM0_level2_quad_clean.evt
Size (bytes)389,494,08090,904,320
Size371.5 MB 86.7 MB
Events in quadrant A2,850,665621,750
Events in quadrant B3,390,239615,092
Events in quadrant C2,755,332606,652
Events in quadrant D5,007,460536,163

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116972
B0135261
C0113601
D0185741

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5327330.619486%
B53272644.955885%
C532790.168951%
D53273376.326262%

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 7120 5328 15 15 0.21% 0.28%
B 7120 5328 210 210 2.95% 3.94%
C 7120 5328 4 4 0.06% 0.08%
D 7120 5328 308 308 4.33% 5.78%

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 411831 3313.26 607 595 124.1
A 13 248 80551 644.19 607 595 124.1
A 13 254 11228 85.67 607 595 124.1
B 5 172 502139 4330.18 593 576 115.8
B 5 255 488544 4212.81 593 576 115.8
B 0 213 57466 491.15 593 576 115.8
C 15 214 245260 1738.58 598 602 140.7
C 9 187 109680 775.13 598 602 140.7
C 15 159 24298 168.39 598 602 140.7
D 12 235 2126217 14900.2 579 563 142.7
D 13 249 338801 2370.95 579 563 142.7
D 2 16 165084 1153.24 579 563 142.7

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