1915 Quetzalcoatl, like 1980 Tezcatlipoca, is an Amor-type asteroid, an inner-system asteroid which does not cross Earth's orbit(as opposed to an Apollo-type asteroid, which does). Quetzalcoatl was discovered on March 9, 1953 by Alfred G. Wilson at Palomar Observatory near Pauma Valley, CA. Its period(year) is about 4 years, 19 days.
It was named for the Mesoamerican god of light and wisdom, son of the primal hermaphroditic creator deity Tonacatehcuhtli and twin brother of Tezcatlipoca, god of matter and darkness, with whom Quetzalcoatl did the actual work of creating the world.
The ancient Indians of Mexico and northern Central America, what we call Mesoamerica, also credited Quetzalcoatl(literally, "feathered serpent" in Nahuatl) with the creation of art and science and other aspects of culture, with the astrological calendar, and with teaching humanity agriculture. He was associated with Venus, a planet which was central to Mesoamerican astrology, and considered the god of mentality, and of the wind in his aspect as Ehecatl, who blew out the wind through his snout. As Ehecatl, he ruled the second of the twenty named days of the Mesoamerican calendar, Ehecatl(Ik to the Mayans), or Wind.
The wind is not seen except indirectly, but it can be heard. It is sudden, unpredictable and potentially destructive, but can be cooling. It is associated with breath, and with speech, and with air, which is necessary for fire to burn and with life(and is also associated with flatulence).
Thy summer's play
My thoughtless hand
Hath brushed away.
Am I not a fly like thee?
And art thou not a man like me?
For I shall dance, and play, and sing,
Till some thoughtless hand
Shall brush my wing.
If thought is life, and strength, and breath,
And the want of thought is death,
Then am I
A happy fly,
If I live
Or if I die.
--William Blake,"The Fly"
Quetzalcoatl was said to create new life by blending his own blood with dead humans' blood; consequently, ancient Aztec worship of him required blood sacrifice in which the hearts of sacrificial victims were eaten raw.
("Take, eat; this is my body; drink, this is my blood, shed for you and for many."--From the service for the Christian Lord's Supper.)
Quetzalcoatl and Tezcatlipoca are two sides of the same coin: Quetzalcoatl is light and Tezcatlipoca darkness; Quetzalcoatl is spirit and Tezcatlipoca matter; Quetzalcoatl gives and Tezcatlipoca takes. Neither can exist without the other.
("No life without death, no light without darkness; the flight of the hawk is conspicuous against the empty sky."--Ursula LeGuin, The Earthsea Trilogy [paraphrased]).
Tezcatlipoca got Quetzalcoatl drunk and he slept with his sister; as a result, he gave up his power and went into exile, promising to return one day, in the year 1 Reed. This ties him into the Greek legend of Chiron, and also the Egyptian legend of Osiris and the Judeo-Christian archetype of Christ, and also the legend of David Koresh--the wounded healer, the redeemer who himself has sinned and has given up his power and status and departed.(Don't forget, where there is Quetzalcoatl, there is also Tezcatlipoca!) Described as fair-skinned, long-haired and bearded, Quetzalcoatl was identified with Hern`an Cortes and the other Spanish conquistadores who arrived in the 16th century, in a 1 Reed year, expediting their conquest of Mexico.
Astrologically, Quetzalcoatl mainly signifies teaching and heroism, but can also signify civilizing influence, redemption, the fallen or imperfect hero(Bill Clinton is a good example of this), communication, the media, journalism, education, the pundit, and that in human nature which gives without taking rather than that which takes without giving(which is signified by Tezcatlipoca).
Thanks to Bruce Scofield for researching Mesoamerican astrology when practically no one else would, and to J.Lee Lehman.