ASTROSAT CZTI

Data Quality Report

Orbit 40632

Creation date: 2024-06-27T22:18:28.612796
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_029T01_9000005556_40632cztM0_level2.fits modeM0/AS1A12_029T01_9000005556_40632cztM0_level2_quad_clean.evt
Size (bytes)317,972,16093,643,200
Size303.2 MB 89.3 MB
Events in quadrant A2,996,114629,210
Events in quadrant B2,812,162656,020
Events in quadrant C2,637,950623,386
Events in quadrant D2,889,006537,133

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122903
B0119622
C0113532
D0124162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5577330.591716%
B5577310.555854%
C557790.161377%
D55773846.885422%

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 9162 5579 24 24 0.26% 0.43%
B 9162 5579 9 9 0.10% 0.16%
C 9162 5579 3 3 0.03% 0.05%
D 9162 5579 37 37 0.40% 0.66%

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 488772 3840.69 618 606 127.1
A 15 223 85597 668.67 618 606 127.1
A 2 79 18475 140.59 618 606 127.1
B 5 255 117545 966.94 617 599 120.9
B 3 112 105023 863.41 617 599 120.9
B 0 229 93661 769.46 617 599 120.9
C 15 214 243168 1717.72 604 608 141.2
C 0 10 16004 109.03 604 608 141.2
C 14 254 15980 108.86 604 608 141.2
D 12 227 196946 1389.43 576 561 141.3
D 12 191 180481 1272.94 576 561 141.3
D 6 239 73245 514.24 576 561 141.3

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