ASTROSAT CZTI

Data Quality Report

Orbit 48589

Creation date: 2024-09-22T03:19:57.498187
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_037T01_9000006436_48589cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48589cztM0_level2_quad_clean.evt
Size (bytes)488,813,76099,630,720
Size466.2 MB 95.0 MB
Events in quadrant A6,598,351667,114
Events in quadrant B5,321,686611,162
Events in quadrant C2,673,303681,172
Events in quadrant D3,001,773608,368

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236733
B0203451
C0130011
D0139811

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64282193.406970%
B642899415.463597%
C6428100.155569%
D6428931.446795%

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 7479 6429 62 62 0.83% 0.96%
B 7479 6429 745 745 9.96% 11.59%
C 7479 6429 0 0 0.00% 0.00%
D 7479 6429 49 49 0.66% 0.76%

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 3979701 28161.61 674 661 141.3
A 13 254 12759 85.62 674 661 141.3
A 3 137 7933 51.47 674 661 141.3
B 12 16 2711453 21594.14 638 618 125.5
B 5 255 27014 210.27 638 618 125.5
B 10 14 26559 206.64 638 618 125.5
C 14 254 13254 77.75 682 684 161.7
C 13 61 4522 23.74 682 684 161.7
C 14 67 2617 11.96 682 684 161.7
D 13 171 271923 1647.57 668 647 164.7
D 2 165 83787 504.94 668 647 164.7
D 2 249 59136 355.23 668 647 164.7

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