ASTROSAT CZTI

Data Quality Report

Orbit 32915

Creation date: 2024-06-27T20:43:24.815943
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_005T01_9000004748_32915cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32915cztM0_level2_quad_clean.evt
Size (bytes)529,571,52099,800,640
Size505.0 MB 95.2 MB
Events in quadrant A2,436,236697,655
Events in quadrant B3,202,879705,098
Events in quadrant C2,889,015678,291
Events in quadrant D7,164,124582,854

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104203
B0127642
C0117152
D0248352

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5106100.195848%
B51061733.388171%
C51061042.036819%
D510685016.647082%

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 7048 5107 0 0 0.00% 0.00%
B 7048 5107 97 97 1.38% 1.90%
C 7048 5107 87 87 1.23% 1.70%
D 7048 5107 825 825 11.71% 16.15%

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 13 6 14252 110.93 618 608 123.0
A 15 169 13677 106.26 618 608 123.0
A 13 254 9717 74.06 618 608 123.0
B 5 172 374162 3209.1 620 606 116.4
B 0 189 110440 943.55 620 606 116.4
B 5 200 76114 648.67 620 606 116.4
C 0 10 374632 2757.84 596 602 135.6
C 4 254 52684 384.02 596 602 135.6
C 15 159 42007 305.29 596 602 135.6
D 8 195 2055428 14509.9 551 539 141.6
D 2 250 803557 5670.24 551 539 141.6
D 12 227 725238 5117.21 551 539 141.6

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